From c24f7e113af32921a8fb8a9b9f9f76941f365572 Mon Sep 17 00:00:00 2001
From: Kamal Fariz Mahyuddin <kamal.fariz@gmail.com>
Date: Fri, 5 Aug 2011 21:48:39 +0800
Subject: [PATCH 1/3] Guard against adding already selected options

---
 coffee/chosen.jquery.coffee | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/coffee/chosen.jquery.coffee b/coffee/chosen.jquery.coffee
index d7ad36b49a7..9b6188ed932 100644
--- a/coffee/chosen.jquery.coffee
+++ b/coffee/chosen.jquery.coffee
@@ -15,7 +15,7 @@ $.fn.extend({
 class Chosen
 
   constructor: (elmn, data, options) ->
-    @options = $.extend({}, options);
+    @options = $.extend({}, options)
     this.set_default_values()
     
     @form_field = elmn
@@ -465,24 +465,29 @@ class Chosen
       this.result_do_highlight do_high if do_high?
   
   no_results: (terms) ->
-    no_results_html = $('<li class="no-results">No results match "<span></span>". <a href="javascript:void(0);" class="option-add">Add this item</a></li>')
+    no_results_html = $('<li class="no-results">No results match "<span></span>".</li>')
     no_results_html.find("span").first().html(terms)
-    no_results_html.find("a.option-add").bind "click", (evt) => this.select_add_option(terms)
+
+    regex = new RegExp('^' + terms + '$', 'i')
+    selected = (option for option in @results_data when regex.test(option.value) and option.selected)
+    if (selected.length == 0)
+      no_results_html.append(' <a href="javascript:void(0);" class="option-add">Add this item</a>')
+      no_results_html.find("a.option-add").bind "click", (evt) => this.select_add_option(terms)
 
     @search_results.append no_results_html
-  
+
   select_add_option: (terms) ->
-    if $.isFunction(@options.addOption) 
-      @options.addOption(terms);
+    if $.isFunction(@options.addOption)
+      @options.addOption(terms)
     else
       new_option_html = $('<option />', {value: terms}).text(terms)
       @form_field_jq.append new_option_html
       @form_field_jq.trigger "liszt:updated"
-      
+
     @search_field.val terms
     @search_field.trigger "keyup"
     this.result_select()
-  
+
   no_results_clear: ->
     @search_results.find(".no-results").remove()
 
@@ -532,10 +537,7 @@ class Chosen
           this.results_search()
       when 13
         evt.preventDefault()
-        if this.results_showing
-            this.result_select() 
-        else
-            console.log(this)
+        this.result_select() if this.results_showing
       when 27
         this.results_hide() if @results_showing
       when 9, 38, 40, 16

From e4974f618fbd18237ed2fc57cfed9cb093c852f2 Mon Sep 17 00:00:00 2001
From: Kamal Fariz Mahyuddin <kamal.fariz@gmail.com>
Date: Fri, 5 Aug 2011 22:58:45 +0800
Subject: [PATCH 2/3] Ported 'Add Item' link to chosen.proto

---
 coffee/chosen.proto.coffee | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/coffee/chosen.proto.coffee b/coffee/chosen.proto.coffee
index 686f222d237..4dabbbd7977 100644
--- a/coffee/chosen.proto.coffee
+++ b/coffee/chosen.proto.coffee
@@ -34,7 +34,8 @@ class Chosen
     @single_temp = new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>')
     @multi_temp = new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>')
     @choice_temp = new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>')
-    @no_results_temp = new Template('<li class="no-results">No results match "<span>#{terms}</span>"</li>')
+    @no_results_temp = new Template('<li class="no-results">No results match "<span>#{terms}</span>".#{add_item_link}</li>')
+    @new_option_html = new Template('<option value="#{terms}">#{terms}</option>')
 
 
   set_up_html: ->
@@ -461,8 +462,18 @@ class Chosen
       this.result_do_highlight do_high if do_high?
   
   no_results: (terms) ->
-    @search_results.insert @no_results_temp.evaluate( terms: terms )
-  
+    regex = new RegExp('^' + terms + '$', 'i')
+    selected = (option for option in @results_data when regex.test(option.value) and option.selected)
+    add_item_link = if selected.length == 0 then ' <a href="javascript:void(0);" class="option-add">Add this item</a>' else ''
+    @search_results.insert @no_results_temp.evaluate( terms: terms, add_item_link: add_item_link )
+    if selected.length == 0
+      @search_results.down("a.option-add").observe "click", (evt) => this.select_add_option(terms)
+
+  select_add_option: (terms) ->
+    @form_field.insert @new_option_html.evaluate( terms: terms )
+    Event.fire @form_field, "liszt:updated"
+    this.result_select()
+
   no_results_clear: ->
     nr = null
     nr.remove() while nr = @search_results.down(".no-results")

From b3ae3f50f094743c91058f8e6fcff53a6f48ffed Mon Sep 17 00:00:00 2001
From: Kamal Fariz Mahyuddin <kamal.fariz@gmail.com>
Date: Fri, 5 Aug 2011 23:05:14 +0800
Subject: [PATCH 3/3] Regenerate js files

---
 chosen/chosen.jquery.js     | 44 +++++++++++++++++++++++++++++++++----
 chosen/chosen.jquery.min.js |  2 +-
 chosen/chosen.proto.js      | 36 +++++++++++++++++++++++++++---
 chosen/chosen.proto.min.js  |  2 +-
 4 files changed, 75 insertions(+), 9 deletions(-)

diff --git a/chosen/chosen.jquery.js b/chosen/chosen.jquery.js
index f933cc66b7e..7e47ef3a0ec 100644
--- a/chosen/chosen.jquery.js
+++ b/chosen/chosen.jquery.js
@@ -11,7 +11,8 @@
   /*
   Chosen source: generate output using 'cake build'
   Copyright (c) 2011 by Harvest
-  */  var $, Chosen, get_side_border_padding, root;
+  */
+  var $, Chosen, get_side_border_padding, root;
   var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
   root = this;
   $ = jQuery;
@@ -25,7 +26,8 @@
     }
   });
   Chosen = (function() {
-    function Chosen(elmn) {
+    function Chosen(elmn, data, options) {
+      this.options = $.extend({}, options);
       this.set_default_values();
       this.form_field = elmn;
       this.form_field_jq = $(this.form_field);
@@ -540,11 +542,45 @@
       }
     };
     Chosen.prototype.no_results = function(terms) {
-      var no_results_html;
-      no_results_html = $('<li class="no-results">No results match "<span></span>"</li>');
+      var no_results_html, option, regex, selected;
+      no_results_html = $('<li class="no-results">No results match "<span></span>".</li>');
       no_results_html.find("span").first().html(terms);
+      regex = new RegExp('^' + terms + '$', 'i');
+      selected = (function() {
+        var _i, _len, _ref, _results;
+        _ref = this.results_data;
+        _results = [];
+        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+          option = _ref[_i];
+          if (regex.test(option.value) && option.selected) {
+            _results.push(option);
+          }
+        }
+        return _results;
+      }).call(this);
+      if (selected.length === 0) {
+        no_results_html.append(' <a href="javascript:void(0);" class="option-add">Add this item</a>');
+        no_results_html.find("a.option-add").bind("click", __bind(function(evt) {
+          return this.select_add_option(terms);
+        }, this));
+      }
       return this.search_results.append(no_results_html);
     };
+    Chosen.prototype.select_add_option = function(terms) {
+      var new_option_html;
+      if ($.isFunction(this.options.addOption)) {
+        this.options.addOption(terms);
+      } else {
+        new_option_html = $('<option />', {
+          value: terms
+        }).text(terms);
+        this.form_field_jq.append(new_option_html);
+        this.form_field_jq.trigger("liszt:updated");
+      }
+      this.search_field.val(terms);
+      this.search_field.trigger("keyup");
+      return this.result_select();
+    };
     Chosen.prototype.no_results_clear = function() {
       return this.search_results.find(".no-results").remove();
     };
diff --git a/chosen/chosen.jquery.min.js b/chosen/chosen.jquery.min.js
index 4954ba486c3..929fd28ea46 100644
--- a/chosen/chosen.jquery.min.js
+++ b/chosen/chosen.jquery.min.js
@@ -7,4 +7,4 @@
 
 // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
 // This file is generated by `cake build`, do not edit it by hand.
-(function(){var a,b,c,d,e=function(a,b){return function(){return a.apply(b,arguments)}};d=this,a=jQuery,a.fn.extend({chosen:function(c,d){return a(this).each(function(e){if(!a(this).hasClass("chzn-done"))return new b(this,c,d)})}}),b=function(){function b(b){this.set_default_values(),this.form_field=b,this.form_field_jq=a(this.form_field),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field_jq.hasClass("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field_jq.addClass("chzn-done")}b.prototype.set_default_values=function(){this.click_test_action=e(function(a){return this.test_active_click(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null;return this.choices=0},b.prototype.set_up_html=function(){var b,d,e,f;this.container_id=this.form_field.id.length?this.form_field.id.replace(/(:|\.)/g,"_"):this.generate_field_id(),this.container_id+="_chzn",this.f_width=this.form_field_jq.width(),this.default_text=this.form_field_jq.data("placeholder")?this.form_field_jq.data("placeholder"):this.default_text_default,b=a("<div />",{id:this.container_id,"class":"chzn-container "+(this.is_rtl?" chzn-rtl":void 0),style:"width: "+this.f_width+"px;"}),this.is_multiple?b.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="'+this.default_text+'" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'):b.html('<a href="javascript:void(0)" class="chzn-single"><span>'+this.default_text+'</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.form_field_jq.hide().after(b),this.container=a("#"+this.container_id),this.container.addClass("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.find("div.chzn-drop").first(),d=this.container.height(),e=this.f_width-c(this.dropdown),this.dropdown.css({width:e+"px",top:d+"px"}),this.search_field=this.container.find("input").first(),this.search_results=this.container.find("ul.chzn-results").first(),this.search_field_scale(),this.search_no_results=this.container.find("li.no-results").first(),this.is_multiple?(this.search_choices=this.container.find("ul.chzn-choices").first(),this.search_container=this.container.find("li.search-field").first()):(this.search_container=this.container.find("div.chzn-search").first(),this.selected_item=this.container.find(".chzn-single").first(),f=e-c(this.search_container)-c(this.search_field),this.search_field.css({width:f+"px"})),this.results_build();return this.set_tab_index()},b.prototype.register_observers=function(){this.container.click(e(function(a){return this.container_click(a)},this)),this.container.mouseenter(e(function(a){return this.mouse_enter(a)},this)),this.container.mouseleave(e(function(a){return this.mouse_leave(a)},this)),this.search_results.click(e(function(a){return this.search_results_click(a)},this)),this.search_results.mouseover(e(function(a){return this.search_results_mouseover(a)},this)),this.search_results.mouseout(e(function(a){return this.search_results_mouseout(a)},this)),this.form_field_jq.bind("liszt:updated",e(function(a){return this.results_update_field(a)},this)),this.search_field.blur(e(function(a){return this.input_blur(a)},this)),this.search_field.keyup(e(function(a){return this.keyup_checker(a)},this)),this.search_field.keydown(e(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.click(e(function(a){return this.choices_click(a)},this));return this.search_field.focus(e(function(a){return this.input_focus(a)},this))}return this.selected_item.focus(e(function(a){return this.activate_field(a)},this))},b.prototype.container_click=function(b){b&&b.type==="click"&&b.stopPropagation();if(!this.pending_destroy_click){this.active_field?!this.is_multiple&&b&&(a(b.target)===this.selected_item||a(b.target).parents("a.chzn-single").length)&&(b.preventDefault(),this.results_toggle()):(this.is_multiple&&this.search_field.val(""),a(document).click(this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1},b.prototype.mouse_enter=function(){return this.mouse_on_container=!0},b.prototype.mouse_leave=function(){return this.mouse_on_container=!1},b.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(e(function(){return this.container_click()},this),50)},b.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(e(function(){return this.blur_test()},this),100)}},b.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClass("chzn-container-active"))return this.close_field()},b.prototype.close_field=function(){a(document).unbind("click",this.click_test_action),this.is_multiple||(this.selected_item.attr("tabindex",this.search_field.attr("tabindex")),this.search_field.attr("tabindex",-1)),this.active_field=!1,this.results_hide(),this.container.removeClass("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},b.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.attr("tabindex",this.selected_item.attr("tabindex")),this.selected_item.attr("tabindex",-1)),this.container.addClass("chzn-container-active"),this.active_field=!0,this.search_field.val(this.search_field.val());return this.search_field.focus()},b.prototype.test_active_click=function(b){return a(b.target).parents("#"+this.container_id).length?this.active_field=!0:this.close_field()},b.prototype.results_build=function(){var a,b,c,e,f,g;c=new Date,this.parsing=!0,this.results_data=d.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.find("li.search-choice").remove(),this.choices=0):this.is_multiple||this.selected_item.find("span").text(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.find("span").text(b.text));this.show_search_field_default(),this.search_field_scale(),this.search_results.html(a);return this.parsing=!1},b.prototype.result_add_group=function(b){if(!b.disabled){b.dom_id=this.container_id+"_g_"+b.array_index;return'<li id="'+b.dom_id+'" class="group-result">'+a("<div />").text(b.label).html()+"</li>"}return""},b.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},b.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},b.prototype.result_do_highlight=function(a){var b,c,d,e,f;if(a.length){this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClass("highlighted"),d=parseInt(this.search_results.css("maxHeight"),10),f=this.search_results.scrollTop(),e=d+f,c=this.result_highlight.position().top+this.search_results.scrollTop(),b=c+this.result_highlight.outerHeight();if(b>=e)return this.search_results.scrollTop(b-d>0?b-d:0);if(c<f)return this.search_results.scrollTop(c)}},b.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClass("highlighted");return this.result_highlight=null},b.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},b.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClass("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.height():this.container.height()-1,this.dropdown.css({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.val(this.search_field.val());return this.winnow_results()},b.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClass("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.css({left:"-9000px"});return this.results_showing=!1},b.prototype.set_tab_index=function(a){var b;if(this.form_field_jq.attr("tabindex")){b=this.form_field_jq.attr("tabindex"),this.form_field_jq.attr("tabindex",-1);if(this.is_multiple)return this.search_field.attr("tabindex",b);this.selected_item.attr("tabindex",b);return this.search_field.attr("tabindex",-1)}},b.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.val(this.default_text);return this.search_field.addClass("default")}this.search_field.val("");return this.search_field.removeClass("default")},b.prototype.search_results_click=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c.length){this.result_highlight=c;return this.result_select()}},b.prototype.search_results_mouseover=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c)return this.result_do_highlight(c)},b.prototype.search_results_mouseout=function(b){if(a(b.target).hasClass("active-result"))return this.result_clear_highlight()},b.prototype.choices_click=function(b){b.preventDefault();if(this.active_field&&!a(b.target).hasClass("search-choice")&&!this.results_showing)return this.results_show()},b.prototype.choice_build=function(b){var c,d;c=this.container_id+"_c_"+b.array_index,this.choices+=1,this.search_container.before('<li class="search-choice" id="'+c+'"><span>'+b.html+'</span><a href="javascript:void(0)" class="search-choice-close" rel="'+b.array_index+'"></a></li>'),d=a("#"+c).find("a").first();return d.click(e(function(a){return this.choice_destroy_link_click(a)},this))},b.prototype.choice_destroy_link_click=function(b){b.preventDefault(),this.pending_destroy_click=!0;return this.choice_destroy(a(b.target))},b.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.val().length<1&&this.results_hide(),this.result_deselect(a.attr("rel"));return a.parents("li").first().remove()},b.prototype.result_select=function(){var a,b,c,d;if(this.result_highlight){a=this.result_highlight,b=a.attr("id"),this.result_clear_highlight(),a.addClass("result-selected"),this.is_multiple?this.result_deactivate(a):this.result_single_selected=a,d=b.substr(b.lastIndexOf("_")+1),c=this.results_data[d],c.selected=!0,this.form_field.options[c.options_index].selected=!0,this.is_multiple?this.choice_build(c):this.selected_item.find("span").first().text(c.text),this.results_hide(),this.search_field.val(""),this.form_field_jq.trigger("change");return this.search_field_scale()}},b.prototype.result_activate=function(a){return a.addClass("active-result").show()},b.prototype.result_deactivate=function(a){return a.removeClass("active-result").hide()},b.prototype.result_deselect=function(b){var c,d;d=this.results_data[b],d.selected=!1,this.form_field.options[d.options_index].selected=!1,c=a("#"+this.container_id+"_o_"+b),c.removeClass("result-selected").addClass("active-result").show(),this.result_clear_highlight(),this.winnow_results(),this.form_field_jq.trigger("change");return this.search_field_scale()},b.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},b.prototype.winnow_results=function(){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r;j=new Date,this.no_results_clear(),h=0,i=this.search_field.val()===this.default_text?"":a("<div/>").text(a.trim(this.search_field.val())).html(),f=new RegExp("^"+i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),m=new RegExp(i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),r=this.results_data;for(n=0,p=r.length;n<p;n++){c=r[n];if(!c.disabled&&!c.empty)if(c.group)a("#"+c.dom_id).hide();else if(!this.is_multiple||!c.selected){b=!1,g=c.dom_id;if(f.test(c.html))b=!0,h+=1;else if(c.html.indexOf(" ")>=0||c.html.indexOf("[")===0){e=c.html.replace(/\[|\]/g,"").split(" ");if(e.length)for(o=0,q=e.length;o<q;o++)d=e[o],f.test(d)&&(b=!0,h+=1)}b?(i.length?(k=c.html.search(m),l=c.html.substr(0,k+i.length)+"</em>"+c.html.substr(k+i.length),l=l.substr(0,k)+"<em>"+l.substr(k)):l=c.html,a("#"+g).html!==l&&a("#"+g).html(l),this.result_activate(a("#"+g)),c.group_array_index!=null&&a("#"+this.results_data[c.group_array_index].dom_id).show()):(this.result_highlight&&g===this.result_highlight.attr("id")&&this.result_clear_highlight(),this.result_deactivate(a("#"+g)))}}return h<1&&i.length?this.no_results(i):this.winnow_results_set_highlight()},b.prototype.winnow_results_clear=function(){var b,c,d,e,f;this.search_field.val(""),c=this.search_results.find("li"),f=[];for(d=0,e=c.length;d<e;d++)b=c[d],b=a(b),f.push(b.hasClass("group-result")?b.show():!this.is_multiple||!b.hasClass("result-selected")?this.result_activate(b):void 0);return f},b.prototype.winnow_results_set_highlight=function(){var a,b;if(!this.result_highlight){b=this.is_multiple?[]:this.search_results.find(".result-selected"),a=b.length?b.first():this.search_results.find(".active-result").first();if(a!=null)return this.result_do_highlight(a)}},b.prototype.no_results=function(b){var c;c=a('<li class="no-results">No results match "<span></span>"</li>'),c.find("span").first().html(b);return this.search_results.append(c)},b.prototype.no_results_clear=function(){return this.search_results.find(".no-results").remove()},b.prototype.keydown_arrow=function(){var b,c;this.result_highlight?this.results_showing&&(c=this.result_highlight.nextAll("li.active-result").first(),c&&this.result_do_highlight(c)):(b=this.search_results.find("li.active-result").first(),b&&this.result_do_highlight(a(b)));if(!this.results_showing)return this.results_show()},b.prototype.keyup_arrow=function(){var a;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){a=this.result_highlight.prevAll("li.active-result");if(a.length)return this.result_do_highlight(a.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},b.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.find("a").first());return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClass("search-choice-focus")},b.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClass("search-choice-focus");return this.pending_backstroke=null},b.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select();break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:break;default:return this.results_search()}},b.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:this.backstroke_length=this.search_field.val().length;break;case 9:this.mouse_on_container=!1;break;case 13:a.preventDefault();break;case 38:a.preventDefault(),this.keyup_arrow();break;case 40:this.keydown_arrow()}},b.prototype.search_field_scale=function(){var b,c,d,e,f,g,h,i,j;if(this.is_multiple){d=0,h=0,f="position:absolute; left: -1000px; top: -1000px; display:none;",g=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(i=0,j=g.length;i<j;i++)e=g[i],f+=e+":"+this.search_field.css(e)+";";c=a("<div />",{style:f}),c.text(this.search_field.val()),a("body").append(c),h=c.width()+25,c.remove(),h>this.f_width-10&&(h=this.f_width-10),this.search_field.css({width:h+"px"}),b=this.container.height();return this.dropdown.css({top:b+"px"})}},b.prototype.generate_field_id=function(){var a;a=this.generate_random_id(),this.form_field.id=a;return a},b.prototype.generate_random_id=function(){var b;b="sel"+this.generate_random_char()+this.generate_random_char()+this.generate_random_char();while(a("#"+b).length>0)b+=this.generate_random_char();return b},b.prototype.generate_random_char=function(){var a,b,c;a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ",c=Math.floor(Math.random()*a.length);return b=a.substring(c,c+1)};return b}(),c=function(a){var b;return b=a.outerWidth()-a.width()},d.get_side_border_padding=c}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
+(function(){var a,b,c,d,e=function(a,b){return function(){return a.apply(b,arguments)}};d=this,a=jQuery,a.fn.extend({chosen:function(c,d){return a(this).each(function(e){if(!a(this).hasClass("chzn-done"))return new b(this,c,d)})}}),b=function(){function b(b,c,d){this.options=a.extend({},d),this.set_default_values(),this.form_field=b,this.form_field_jq=a(this.form_field),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field_jq.hasClass("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field_jq.addClass("chzn-done")}b.prototype.set_default_values=function(){this.click_test_action=e(function(a){return this.test_active_click(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null;return this.choices=0},b.prototype.set_up_html=function(){var b,d,e,f;this.container_id=this.form_field.id.length?this.form_field.id.replace(/(:|\.)/g,"_"):this.generate_field_id(),this.container_id+="_chzn",this.f_width=this.form_field_jq.width(),this.default_text=this.form_field_jq.data("placeholder")?this.form_field_jq.data("placeholder"):this.default_text_default,b=a("<div />",{id:this.container_id,"class":"chzn-container "+(this.is_rtl?" chzn-rtl":void 0),style:"width: "+this.f_width+"px;"}),this.is_multiple?b.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="'+this.default_text+'" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'):b.html('<a href="javascript:void(0)" class="chzn-single"><span>'+this.default_text+'</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.form_field_jq.hide().after(b),this.container=a("#"+this.container_id),this.container.addClass("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.find("div.chzn-drop").first(),d=this.container.height(),e=this.f_width-c(this.dropdown),this.dropdown.css({width:e+"px",top:d+"px"}),this.search_field=this.container.find("input").first(),this.search_results=this.container.find("ul.chzn-results").first(),this.search_field_scale(),this.search_no_results=this.container.find("li.no-results").first(),this.is_multiple?(this.search_choices=this.container.find("ul.chzn-choices").first(),this.search_container=this.container.find("li.search-field").first()):(this.search_container=this.container.find("div.chzn-search").first(),this.selected_item=this.container.find(".chzn-single").first(),f=e-c(this.search_container)-c(this.search_field),this.search_field.css({width:f+"px"})),this.results_build();return this.set_tab_index()},b.prototype.register_observers=function(){this.container.click(e(function(a){return this.container_click(a)},this)),this.container.mouseenter(e(function(a){return this.mouse_enter(a)},this)),this.container.mouseleave(e(function(a){return this.mouse_leave(a)},this)),this.search_results.click(e(function(a){return this.search_results_click(a)},this)),this.search_results.mouseover(e(function(a){return this.search_results_mouseover(a)},this)),this.search_results.mouseout(e(function(a){return this.search_results_mouseout(a)},this)),this.form_field_jq.bind("liszt:updated",e(function(a){return this.results_update_field(a)},this)),this.search_field.blur(e(function(a){return this.input_blur(a)},this)),this.search_field.keyup(e(function(a){return this.keyup_checker(a)},this)),this.search_field.keydown(e(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.click(e(function(a){return this.choices_click(a)},this));return this.search_field.focus(e(function(a){return this.input_focus(a)},this))}return this.selected_item.focus(e(function(a){return this.activate_field(a)},this))},b.prototype.container_click=function(b){b&&b.type==="click"&&b.stopPropagation();if(!this.pending_destroy_click){this.active_field?!this.is_multiple&&b&&(a(b.target)===this.selected_item||a(b.target).parents("a.chzn-single").length)&&(b.preventDefault(),this.results_toggle()):(this.is_multiple&&this.search_field.val(""),a(document).click(this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1},b.prototype.mouse_enter=function(){return this.mouse_on_container=!0},b.prototype.mouse_leave=function(){return this.mouse_on_container=!1},b.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(e(function(){return this.container_click()},this),50)},b.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(e(function(){return this.blur_test()},this),100)}},b.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClass("chzn-container-active"))return this.close_field()},b.prototype.close_field=function(){a(document).unbind("click",this.click_test_action),this.is_multiple||(this.selected_item.attr("tabindex",this.search_field.attr("tabindex")),this.search_field.attr("tabindex",-1)),this.active_field=!1,this.results_hide(),this.container.removeClass("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},b.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.attr("tabindex",this.selected_item.attr("tabindex")),this.selected_item.attr("tabindex",-1)),this.container.addClass("chzn-container-active"),this.active_field=!0,this.search_field.val(this.search_field.val());return this.search_field.focus()},b.prototype.test_active_click=function(b){return a(b.target).parents("#"+this.container_id).length?this.active_field=!0:this.close_field()},b.prototype.results_build=function(){var a,b,c,e,f,g;c=new Date,this.parsing=!0,this.results_data=d.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.find("li.search-choice").remove(),this.choices=0):this.is_multiple||this.selected_item.find("span").text(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.find("span").text(b.text));this.show_search_field_default(),this.search_field_scale(),this.search_results.html(a);return this.parsing=!1},b.prototype.result_add_group=function(b){if(!b.disabled){b.dom_id=this.container_id+"_g_"+b.array_index;return'<li id="'+b.dom_id+'" class="group-result">'+a("<div />").text(b.label).html()+"</li>"}return""},b.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},b.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},b.prototype.result_do_highlight=function(a){var b,c,d,e,f;if(a.length){this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClass("highlighted"),d=parseInt(this.search_results.css("maxHeight"),10),f=this.search_results.scrollTop(),e=d+f,c=this.result_highlight.position().top+this.search_results.scrollTop(),b=c+this.result_highlight.outerHeight();if(b>=e)return this.search_results.scrollTop(b-d>0?b-d:0);if(c<f)return this.search_results.scrollTop(c)}},b.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClass("highlighted");return this.result_highlight=null},b.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},b.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClass("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.height():this.container.height()-1,this.dropdown.css({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.val(this.search_field.val());return this.winnow_results()},b.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClass("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.css({left:"-9000px"});return this.results_showing=!1},b.prototype.set_tab_index=function(a){var b;if(this.form_field_jq.attr("tabindex")){b=this.form_field_jq.attr("tabindex"),this.form_field_jq.attr("tabindex",-1);if(this.is_multiple)return this.search_field.attr("tabindex",b);this.selected_item.attr("tabindex",b);return this.search_field.attr("tabindex",-1)}},b.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.val(this.default_text);return this.search_field.addClass("default")}this.search_field.val("");return this.search_field.removeClass("default")},b.prototype.search_results_click=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c.length){this.result_highlight=c;return this.result_select()}},b.prototype.search_results_mouseover=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c)return this.result_do_highlight(c)},b.prototype.search_results_mouseout=function(b){if(a(b.target).hasClass("active-result"))return this.result_clear_highlight()},b.prototype.choices_click=function(b){b.preventDefault();if(this.active_field&&!a(b.target).hasClass("search-choice")&&!this.results_showing)return this.results_show()},b.prototype.choice_build=function(b){var c,d;c=this.container_id+"_c_"+b.array_index,this.choices+=1,this.search_container.before('<li class="search-choice" id="'+c+'"><span>'+b.html+'</span><a href="javascript:void(0)" class="search-choice-close" rel="'+b.array_index+'"></a></li>'),d=a("#"+c).find("a").first();return d.click(e(function(a){return this.choice_destroy_link_click(a)},this))},b.prototype.choice_destroy_link_click=function(b){b.preventDefault(),this.pending_destroy_click=!0;return this.choice_destroy(a(b.target))},b.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.val().length<1&&this.results_hide(),this.result_deselect(a.attr("rel"));return a.parents("li").first().remove()},b.prototype.result_select=function(){var a,b,c,d;if(this.result_highlight){a=this.result_highlight,b=a.attr("id"),this.result_clear_highlight(),a.addClass("result-selected"),this.is_multiple?this.result_deactivate(a):this.result_single_selected=a,d=b.substr(b.lastIndexOf("_")+1),c=this.results_data[d],c.selected=!0,this.form_field.options[c.options_index].selected=!0,this.is_multiple?this.choice_build(c):this.selected_item.find("span").first().text(c.text),this.results_hide(),this.search_field.val(""),this.form_field_jq.trigger("change");return this.search_field_scale()}},b.prototype.result_activate=function(a){return a.addClass("active-result").show()},b.prototype.result_deactivate=function(a){return a.removeClass("active-result").hide()},b.prototype.result_deselect=function(b){var c,d;d=this.results_data[b],d.selected=!1,this.form_field.options[d.options_index].selected=!1,c=a("#"+this.container_id+"_o_"+b),c.removeClass("result-selected").addClass("active-result").show(),this.result_clear_highlight(),this.winnow_results(),this.form_field_jq.trigger("change");return this.search_field_scale()},b.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},b.prototype.winnow_results=function(){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r;j=new Date,this.no_results_clear(),h=0,i=this.search_field.val()===this.default_text?"":a("<div/>").text(a.trim(this.search_field.val())).html(),f=new RegExp("^"+i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),m=new RegExp(i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),r=this.results_data;for(n=0,p=r.length;n<p;n++){c=r[n];if(!c.disabled&&!c.empty)if(c.group)a("#"+c.dom_id).hide();else if(!this.is_multiple||!c.selected){b=!1,g=c.dom_id;if(f.test(c.html))b=!0,h+=1;else if(c.html.indexOf(" ")>=0||c.html.indexOf("[")===0){e=c.html.replace(/\[|\]/g,"").split(" ");if(e.length)for(o=0,q=e.length;o<q;o++)d=e[o],f.test(d)&&(b=!0,h+=1)}b?(i.length?(k=c.html.search(m),l=c.html.substr(0,k+i.length)+"</em>"+c.html.substr(k+i.length),l=l.substr(0,k)+"<em>"+l.substr(k)):l=c.html,a("#"+g).html!==l&&a("#"+g).html(l),this.result_activate(a("#"+g)),c.group_array_index!=null&&a("#"+this.results_data[c.group_array_index].dom_id).show()):(this.result_highlight&&g===this.result_highlight.attr("id")&&this.result_clear_highlight(),this.result_deactivate(a("#"+g)))}}return h<1&&i.length?this.no_results(i):this.winnow_results_set_highlight()},b.prototype.winnow_results_clear=function(){var b,c,d,e,f;this.search_field.val(""),c=this.search_results.find("li"),f=[];for(d=0,e=c.length;d<e;d++)b=c[d],b=a(b),f.push(b.hasClass("group-result")?b.show():!this.is_multiple||!b.hasClass("result-selected")?this.result_activate(b):void 0);return f},b.prototype.winnow_results_set_highlight=function(){var a,b;if(!this.result_highlight){b=this.is_multiple?[]:this.search_results.find(".result-selected"),a=b.length?b.first():this.search_results.find(".active-result").first();if(a!=null)return this.result_do_highlight(a)}},b.prototype.no_results=function(b){var c,d,f,g;c=a('<li class="no-results">No results match "<span></span>".</li>'),c.find("span").first().html(b),f=new RegExp("^"+b+"$","i"),g=function(){var a,b,c,e;c=this.results_data,e=[];for(a=0,b=c.length;a<b;a++)d=c[a],f.test(d.value)&&d.selected&&e.push(d);return e}.call(this),g.length===0&&(c.append(' <a href="javascript:void(0);" class="option-add">Add this item</a>'),c.find("a.option-add").bind("click",e(function(a){return this.select_add_option(b)},this)));return this.search_results.append(c)},b.prototype.select_add_option=function(b){var c;a.isFunction(this.options.addOption)?this.options.addOption(b):(c=a("<option />",{value:b}).text(b),this.form_field_jq.append(c),this.form_field_jq.trigger("liszt:updated")),this.search_field.val(b),this.search_field.trigger("keyup");return this.result_select()},b.prototype.no_results_clear=function(){return this.search_results.find(".no-results").remove()},b.prototype.keydown_arrow=function(){var b,c;this.result_highlight?this.results_showing&&(c=this.result_highlight.nextAll("li.active-result").first(),c&&this.result_do_highlight(c)):(b=this.search_results.find("li.active-result").first(),b&&this.result_do_highlight(a(b)));if(!this.results_showing)return this.results_show()},b.prototype.keyup_arrow=function(){var a;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){a=this.result_highlight.prevAll("li.active-result");if(a.length)return this.result_do_highlight(a.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},b.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.find("a").first());return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClass("search-choice-focus")},b.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClass("search-choice-focus");return this.pending_backstroke=null},b.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select();break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:break;default:return this.results_search()}},b.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:this.backstroke_length=this.search_field.val().length;break;case 9:this.mouse_on_container=!1;break;case 13:a.preventDefault();break;case 38:a.preventDefault(),this.keyup_arrow();break;case 40:this.keydown_arrow()}},b.prototype.search_field_scale=function(){var b,c,d,e,f,g,h,i,j;if(this.is_multiple){d=0,h=0,f="position:absolute; left: -1000px; top: -1000px; display:none;",g=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(i=0,j=g.length;i<j;i++)e=g[i],f+=e+":"+this.search_field.css(e)+";";c=a("<div />",{style:f}),c.text(this.search_field.val()),a("body").append(c),h=c.width()+25,c.remove(),h>this.f_width-10&&(h=this.f_width-10),this.search_field.css({width:h+"px"}),b=this.container.height();return this.dropdown.css({top:b+"px"})}},b.prototype.generate_field_id=function(){var a;a=this.generate_random_id(),this.form_field.id=a;return a},b.prototype.generate_random_id=function(){var b;b="sel"+this.generate_random_char()+this.generate_random_char()+this.generate_random_char();while(a("#"+b).length>0)b+=this.generate_random_char();return b},b.prototype.generate_random_char=function(){var a,b,c;a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ",c=Math.floor(Math.random()*a.length);return b=a.substring(c,c+1)};return b}(),c=function(a){var b;return b=a.outerWidth()-a.width()},d.get_side_border_padding=c}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
diff --git a/chosen/chosen.proto.js b/chosen/chosen.proto.js
index e8c697d3f0e..0c7e6ee02a7 100644
--- a/chosen/chosen.proto.js
+++ b/chosen/chosen.proto.js
@@ -11,7 +11,8 @@
   /*
   Chosen source: generate output using 'cake build'
   Copyright (c) 2011 by Harvest
-  */  var Chosen, get_side_border_padding, root;
+  */
+  var Chosen, get_side_border_padding, root;
   var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
   root = this;
   Chosen = (function() {
@@ -38,7 +39,8 @@
       this.single_temp = new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>');
       this.multi_temp = new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>');
       this.choice_temp = new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>');
-      return this.no_results_temp = new Template('<li class="no-results">No results match "<span>#{terms}</span>"</li>');
+      this.no_results_temp = new Template('<li class="no-results">No results match "<span>#{terms}</span>".#{add_item_link}</li>');
+      return this.new_option_html = new Template('<option value="#{terms}">#{terms}</option>');
     };
     Chosen.prototype.set_up_html = function() {
       var base_template, container_props, dd_top, dd_width, sf_width;
@@ -539,9 +541,37 @@
       }
     };
     Chosen.prototype.no_results = function(terms) {
-      return this.search_results.insert(this.no_results_temp.evaluate({
+      var add_item_link, option, regex, selected;
+      regex = new RegExp('^' + terms + '$', 'i');
+      selected = (function() {
+        var _i, _len, _ref, _results;
+        _ref = this.results_data;
+        _results = [];
+        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+          option = _ref[_i];
+          if (regex.test(option.value) && option.selected) {
+            _results.push(option);
+          }
+        }
+        return _results;
+      }).call(this);
+      add_item_link = selected.length === 0 ? ' <a href="javascript:void(0);" class="option-add">Add this item</a>' : '';
+      this.search_results.insert(this.no_results_temp.evaluate({
+        terms: terms,
+        add_item_link: add_item_link
+      }));
+      if (selected.length === 0) {
+        return this.search_results.down("a.option-add").observe("click", __bind(function(evt) {
+          return this.select_add_option(terms);
+        }, this));
+      }
+    };
+    Chosen.prototype.select_add_option = function(terms) {
+      this.form_field.insert(this.new_option_html.evaluate({
         terms: terms
       }));
+      Event.fire(this.form_field, "liszt:updated");
+      return this.result_select();
     };
     Chosen.prototype.no_results_clear = function() {
       var nr, _results;
diff --git a/chosen/chosen.proto.min.js b/chosen/chosen.proto.min.js
index e4cef4205cb..b3c1a559072 100644
--- a/chosen/chosen.proto.min.js
+++ b/chosen/chosen.proto.min.js
@@ -7,4 +7,4 @@
 
 // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
 // This file is generated by `cake build`, do not edit it by hand.
-(function(){var a,b,c,d=function(a,b){return function(){return a.apply(b,arguments)}};c=this,a=function(){function a(a){this.set_default_values(),this.form_field=a,this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field.hasClassName("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field.addClassName("chzn-done")}a.prototype.set_default_values=function(){this.click_test_action=d(function(a){return this.test_active_click(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.choices=0,this.single_temp=new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.multi_temp=new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'),this.choice_temp=new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>');return this.no_results_temp=new Template('<li class="no-results">No results match "<span>#{terms}</span>"</li>')},a.prototype.set_up_html=function(){var a,c,d,e,f;this.container_id=this.form_field.identify().replace(/(:|\.)/g,"_")+"_chzn",this.f_width=this.form_field.getStyle("width")?parseInt(this.form_field.getStyle("width"),10):this.form_field.getWidth(),c={id:this.container_id,"class":"chzn-container "+(this.is_rtl?" chzn-rtl":void 0),style:"width: "+this.f_width+"px"},this.default_text=this.form_field.readAttribute("data-placeholder")?this.form_field.readAttribute("data-placeholder"):this.default_text_default,a=this.is_multiple?(new Element("div",c)).update(this.multi_temp.evaluate({"default":this.default_text})):(new Element("div",c)).update(this.single_temp.evaluate({"default":this.default_text})),this.form_field.hide().insert({after:a}),this.container=$(this.container_id),this.container.addClassName("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.down("div.chzn-drop"),d=this.container.getHeight(),e=this.f_width-b(this.dropdown),this.dropdown.setStyle({width:e+"px",top:d+"px"}),this.search_field=this.container.down("input"),this.search_results=this.container.down("ul.chzn-results"),this.search_field_scale(),this.search_no_results=this.container.down("li.no-results"),this.is_multiple?(this.search_choices=this.container.down("ul.chzn-choices"),this.search_container=this.container.down("li.search-field")):(this.search_container=this.container.down("div.chzn-search"),this.selected_item=this.container.down(".chzn-single"),f=e-b(this.search_container)-b(this.search_field),this.search_field.setStyle({width:f+"px"})),this.results_build();return this.set_tab_index()},a.prototype.register_observers=function(){this.container.observe("click",d(function(a){return this.container_click(a)},this)),this.container.observe("mouseenter",d(function(a){return this.mouse_enter(a)},this)),this.container.observe("mouseleave",d(function(a){return this.mouse_leave(a)},this)),this.search_results.observe("click",d(function(a){return this.search_results_click(a)},this)),this.search_results.observe("mouseover",d(function(a){return this.search_results_mouseover(a)},this)),this.search_results.observe("mouseout",d(function(a){return this.search_results_mouseout(a)},this)),this.form_field.observe("liszt:updated",d(function(a){return this.results_update_field(a)},this)),this.search_field.observe("blur",d(function(a){return this.input_blur(a)},this)),this.search_field.observe("keyup",d(function(a){return this.keyup_checker(a)},this)),this.search_field.observe("keydown",d(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.observe("click",d(function(a){return this.choices_click(a)},this));return this.search_field.observe("focus",d(function(a){return this.input_focus(a)},this))}return this.selected_item.observe("focus",d(function(a){return this.activate_field(a)},this))},a.prototype.container_click=function(a){a&&a.type==="click"&&a.stop();if(!this.pending_destroy_click){this.active_field?!this.is_multiple&&a&&(a.target===this.selected_item||a.target.up("a.chzn-single"))&&this.results_toggle():(this.is_multiple&&this.search_field.clear(),document.observe("click",this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1},a.prototype.mouse_enter=function(){return this.mouse_on_container=!0},a.prototype.mouse_leave=function(){return this.mouse_on_container=!1},a.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(this.container_click.bind(this),50)},a.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(this.blur_test.bind(this),100)}},a.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClassName("chzn-container-active"))return this.close_field()},a.prototype.close_field=function(){document.stopObserving("click",this.click_test_action),this.is_multiple||(this.selected_item.tabIndex=this.search_field.tabIndex,this.search_field.tabIndex=-1),this.active_field=!1,this.results_hide(),this.container.removeClassName("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},a.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.tabIndex=this.selected_item.tabIndex,this.selected_item.tabIndex=-1),this.container.addClassName("chzn-container-active"),this.active_field=!0,this.search_field.value=this.search_field.value;return this.search_field.focus()},a.prototype.test_active_click=function(a){return a.target.up("#"+this.container_id)?this.active_field=!0:this.close_field()},a.prototype.results_build=function(){var a,b,d,e,f,g;d=new Date,this.parsing=!0,this.results_data=c.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.select("li.search-choice").invoke("remove"),this.choices=0):this.is_multiple||this.selected_item.down("span").update(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.down("span").update(b.html));this.show_search_field_default(),this.search_field_scale(),this.search_results.update(a);return this.parsing=!1},a.prototype.result_add_group=function(a){if(!a.disabled){a.dom_id=this.container_id+"_g_"+a.array_index;return'<li id="'+a.dom_id+'" class="group-result">'+a.label.escapeHTML()+"</li>"}return""},a.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},a.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},a.prototype.result_do_highlight=function(a){var b,c,d,e,f;this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClassName("highlighted"),d=parseInt(this.search_results.getStyle("maxHeight"),10),f=this.search_results.scrollTop,e=d+f,c=this.result_highlight.positionedOffset().top,b=c+this.result_highlight.getHeight();if(b>=e)return this.search_results.scrollTop=b-d>0?b-d:0;if(c<f)return this.search_results.scrollTop=c},a.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClassName("highlighted");return this.result_highlight=null},a.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},a.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClassName("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.getHeight():this.container.getHeight()-1,this.dropdown.setStyle({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.value=this.search_field.value;return this.winnow_results()},a.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClassName("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.setStyle({left:"-9000px"});return this.results_showing=!1},a.prototype.set_tab_index=function(a){var b;if(this.form_field.tabIndex){b=this.form_field.tabIndex,this.form_field.tabIndex=-1;if(this.is_multiple)return this.search_field.tabIndex=b;this.selected_item.tabIndex=b;return this.search_field.tabIndex=-1}},a.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.value=this.default_text;return this.search_field.addClassName("default")}this.search_field.value="";return this.search_field.removeClassName("default")},a.prototype.search_results_click=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b){this.result_highlight=b;return this.result_select()}},a.prototype.search_results_mouseover=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b)return this.result_do_highlight(b)},a.prototype.search_results_mouseout=function(a){if(a.target.hasClassName("active-result")||a.target.up(".active-result"))return this.result_clear_highlight()},a.prototype.choices_click=function(a){a.preventDefault();if(this.active_field&&!a.target.hasClassName("search-choice")&&!a.target.up(".search-choice")&&!this.results_showing)return this.results_show()},a.prototype.choice_build=function(a){var b,c;b=this.container_id+"_c_"+a.array_index,this.choices+=1,this.search_container.insert({before:this.choice_temp.evaluate({id:b,choice:a.html,position:a.array_index})}),c=$(b).down("a");return c.observe("click",d(function(a){return this.choice_destroy_link_click(a)},this))},a.prototype.choice_destroy_link_click=function(a){a.preventDefault(),this.pending_destroy_click=!0;return this.choice_destroy(a.target)},a.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.value.length<1&&this.results_hide(),this.result_deselect(a.readAttribute("rel"));return a.up("li").remove()},a.prototype.result_select=function(){var a,b,c;if(this.result_highlight){a=this.result_highlight,this.result_clear_highlight(),a.addClassName("result-selected"),this.is_multiple?this.result_deactivate(a):this.result_single_selected=a,c=a.id.substr(a.id.lastIndexOf("_")+1),b=this.results_data[c],b.selected=!0,this.form_field.options[b.options_index].selected=!0,this.is_multiple?this.choice_build(b):this.selected_item.down("span").update(b.html),this.results_hide(),this.search_field.value="",typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()}},a.prototype.result_activate=function(a){return a.addClassName("active-result").show()},a.prototype.result_deactivate=function(a){return a.removeClassName("active-result").hide()},a.prototype.result_deselect=function(a){var b,c;c=this.results_data[a],c.selected=!1,this.form_field.options[c.options_index].selected=!1,b=$(this.container_id+"_o_"+a),b.removeClassName("result-selected").addClassName("active-result").show(),this.result_clear_highlight(),this.winnow_results(),typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()},a.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},a.prototype.winnow_results=function(){var a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q;i=new Date,this.no_results_clear(),g=0,h=this.search_field.value===this.default_text?"":this.search_field.value.strip().escapeHTML(),e=new RegExp("^"+h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),l=new RegExp(h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),q=this.results_data;for(m=0,o=q.length;m<o;m++){b=q[m];if(!b.disabled&&!b.empty)if(b.group)$(b.dom_id).hide();else if(!this.is_multiple||!b.selected){a=!1,f=b.dom_id;if(e.test(b.html))a=!0,g+=1;else if(b.html.indexOf(" ")>=0||b.html.indexOf("[")===0){d=b.html.replace(/\[|\]/g,"").split(" ");if(d.length)for(n=0,p=d.length;n<p;n++)c=d[n],e.test(c)&&(a=!0,g+=1)}a?(h.length?(j=b.html.search(l),k=b.html.substr(0,j+h.length)+"</em>"+b.html.substr(j+h.length),k=k.substr(0,j)+"<em>"+k.substr(j)):k=b.html,$(f).innerHTML!==k&&$(f).update(k),this.result_activate($(f)),b.group_array_index!=null&&$(this.results_data[b.group_array_index].dom_id).show()):($(f)===this.result_highlight&&this.result_clear_highlight(),this.result_deactivate($(f)))}}return g<1&&h.length?this.no_results(h):this.winnow_results_set_highlight()},a.prototype.winnow_results_clear=function(){var a,b,c,d,e;this.search_field.clear(),b=this.search_results.select("li"),e=[];for(c=0,d=b.length;c<d;c++)a=b[c],e.push(a.hasClassName("group-result")?a.show():!this.is_multiple||!a.hasClassName("result-selected")?this.result_activate(a):void 0);return e},a.prototype.winnow_results_set_highlight=function(){var a;if(!this.result_highlight){this.is_multiple||(a=this.search_results.down(".result-selected")),a==null&&(a=this.search_results.down(".active-result"));if(a!=null)return this.result_do_highlight(a)}},a.prototype.no_results=function(a){return this.search_results.insert(this.no_results_temp.evaluate({terms:a}))},a.prototype.no_results_clear=function(){var a,b;a=null,b=[];while(a=this.search_results.down(".no-results"))b.push(a.remove());return b},a.prototype.keydown_arrow=function(){var a,b,c;a=this.search_results.select("li.active-result");if(a.length){this.result_highlight?this.results_showing&&(c=this.result_highlight.nextSiblings(),b=c.intersect(a),b.length&&this.result_do_highlight(b.first())):this.result_do_highlight(a.first());if(!this.results_showing)return this.results_show()}},a.prototype.keyup_arrow=function(){var a,b,c;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){c=this.result_highlight.previousSiblings(),a=this.search_results.select("li.active-result"),b=c.intersect(a);if(b.length)return this.result_do_highlight(b.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},a.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.down("a"));return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClassName("search-choice-focus")},a.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClassName("search-choice-focus");return this.pending_backstroke=null},a.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select();break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:break;default:return this.results_search()}},a.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:return this.backstroke_length=this.search_field.value.length;case 9:return this.mouse_on_container=!1;case 13:return a.preventDefault();case 38:a.preventDefault();return this.keyup_arrow();case 40:return this.keydown_arrow()}},a.prototype.search_field_scale=function(){var a,b,c,d,e,f,g,h,i;if(this.is_multiple){c=0,g=0,e="position:absolute; left: -1000px; top: -1000px; display:none;",f=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(h=0,i=f.length;h<i;h++)d=f[h],e+=d+":"+this.search_field.getStyle(d)+";";b=(new Element("div",{style:e})).update(this.search_field.value.escapeHTML()),document.body.appendChild(b),g=Element.measure(b,"width")+25,b.remove(),g>this.f_width-10&&(g=this.f_width-10),this.search_field.setStyle({width:g+"px"}),a=this.container.getHeight();return this.dropdown.setStyle({top:a+"px"})}};return a}(),c.Chosen=a,document.observe("dom:loaded",function(b){var c,d,e,f,g;d=$$(".chzn-select"),g=[];for(e=0,f=d.length;e<f;e++)c=d[e],g.push(new a(c));return g}),b=function(a){var b,c;b=new Element.Layout(a);return c=b.get("border-left")+b.get("border-right")+b.get("padding-left")+b.get("padding-right")},c.get_side_border_padding=b}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
+(function(){var a,b,c,d=function(a,b){return function(){return a.apply(b,arguments)}};c=this,a=function(){function a(a){this.set_default_values(),this.form_field=a,this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field.hasClassName("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field.addClassName("chzn-done")}a.prototype.set_default_values=function(){this.click_test_action=d(function(a){return this.test_active_click(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.choices=0,this.single_temp=new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.multi_temp=new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'),this.choice_temp=new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>'),this.no_results_temp=new Template('<li class="no-results">No results match "<span>#{terms}</span>".#{add_item_link}</li>');return this.new_option_html=new Template('<option value="#{terms}">#{terms}</option>')},a.prototype.set_up_html=function(){var a,c,d,e,f;this.container_id=this.form_field.identify().replace(/(:|\.)/g,"_")+"_chzn",this.f_width=this.form_field.getStyle("width")?parseInt(this.form_field.getStyle("width"),10):this.form_field.getWidth(),c={id:this.container_id,"class":"chzn-container "+(this.is_rtl?" chzn-rtl":void 0),style:"width: "+this.f_width+"px"},this.default_text=this.form_field.readAttribute("data-placeholder")?this.form_field.readAttribute("data-placeholder"):this.default_text_default,a=this.is_multiple?(new Element("div",c)).update(this.multi_temp.evaluate({"default":this.default_text})):(new Element("div",c)).update(this.single_temp.evaluate({"default":this.default_text})),this.form_field.hide().insert({after:a}),this.container=$(this.container_id),this.container.addClassName("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.down("div.chzn-drop"),d=this.container.getHeight(),e=this.f_width-b(this.dropdown),this.dropdown.setStyle({width:e+"px",top:d+"px"}),this.search_field=this.container.down("input"),this.search_results=this.container.down("ul.chzn-results"),this.search_field_scale(),this.search_no_results=this.container.down("li.no-results"),this.is_multiple?(this.search_choices=this.container.down("ul.chzn-choices"),this.search_container=this.container.down("li.search-field")):(this.search_container=this.container.down("div.chzn-search"),this.selected_item=this.container.down(".chzn-single"),f=e-b(this.search_container)-b(this.search_field),this.search_field.setStyle({width:f+"px"})),this.results_build();return this.set_tab_index()},a.prototype.register_observers=function(){this.container.observe("click",d(function(a){return this.container_click(a)},this)),this.container.observe("mouseenter",d(function(a){return this.mouse_enter(a)},this)),this.container.observe("mouseleave",d(function(a){return this.mouse_leave(a)},this)),this.search_results.observe("click",d(function(a){return this.search_results_click(a)},this)),this.search_results.observe("mouseover",d(function(a){return this.search_results_mouseover(a)},this)),this.search_results.observe("mouseout",d(function(a){return this.search_results_mouseout(a)},this)),this.form_field.observe("liszt:updated",d(function(a){return this.results_update_field(a)},this)),this.search_field.observe("blur",d(function(a){return this.input_blur(a)},this)),this.search_field.observe("keyup",d(function(a){return this.keyup_checker(a)},this)),this.search_field.observe("keydown",d(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.observe("click",d(function(a){return this.choices_click(a)},this));return this.search_field.observe("focus",d(function(a){return this.input_focus(a)},this))}return this.selected_item.observe("focus",d(function(a){return this.activate_field(a)},this))},a.prototype.container_click=function(a){a&&a.type==="click"&&a.stop();if(!this.pending_destroy_click){this.active_field?!this.is_multiple&&a&&(a.target===this.selected_item||a.target.up("a.chzn-single"))&&this.results_toggle():(this.is_multiple&&this.search_field.clear(),document.observe("click",this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1},a.prototype.mouse_enter=function(){return this.mouse_on_container=!0},a.prototype.mouse_leave=function(){return this.mouse_on_container=!1},a.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(this.container_click.bind(this),50)},a.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(this.blur_test.bind(this),100)}},a.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClassName("chzn-container-active"))return this.close_field()},a.prototype.close_field=function(){document.stopObserving("click",this.click_test_action),this.is_multiple||(this.selected_item.tabIndex=this.search_field.tabIndex,this.search_field.tabIndex=-1),this.active_field=!1,this.results_hide(),this.container.removeClassName("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},a.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.tabIndex=this.selected_item.tabIndex,this.selected_item.tabIndex=-1),this.container.addClassName("chzn-container-active"),this.active_field=!0,this.search_field.value=this.search_field.value;return this.search_field.focus()},a.prototype.test_active_click=function(a){return a.target.up("#"+this.container_id)?this.active_field=!0:this.close_field()},a.prototype.results_build=function(){var a,b,d,e,f,g;d=new Date,this.parsing=!0,this.results_data=c.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.select("li.search-choice").invoke("remove"),this.choices=0):this.is_multiple||this.selected_item.down("span").update(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.down("span").update(b.html));this.show_search_field_default(),this.search_field_scale(),this.search_results.update(a);return this.parsing=!1},a.prototype.result_add_group=function(a){if(!a.disabled){a.dom_id=this.container_id+"_g_"+a.array_index;return'<li id="'+a.dom_id+'" class="group-result">'+a.label.escapeHTML()+"</li>"}return""},a.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},a.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},a.prototype.result_do_highlight=function(a){var b,c,d,e,f;this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClassName("highlighted"),d=parseInt(this.search_results.getStyle("maxHeight"),10),f=this.search_results.scrollTop,e=d+f,c=this.result_highlight.positionedOffset().top,b=c+this.result_highlight.getHeight();if(b>=e)return this.search_results.scrollTop=b-d>0?b-d:0;if(c<f)return this.search_results.scrollTop=c},a.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClassName("highlighted");return this.result_highlight=null},a.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},a.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClassName("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.getHeight():this.container.getHeight()-1,this.dropdown.setStyle({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.value=this.search_field.value;return this.winnow_results()},a.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClassName("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.setStyle({left:"-9000px"});return this.results_showing=!1},a.prototype.set_tab_index=function(a){var b;if(this.form_field.tabIndex){b=this.form_field.tabIndex,this.form_field.tabIndex=-1;if(this.is_multiple)return this.search_field.tabIndex=b;this.selected_item.tabIndex=b;return this.search_field.tabIndex=-1}},a.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.value=this.default_text;return this.search_field.addClassName("default")}this.search_field.value="";return this.search_field.removeClassName("default")},a.prototype.search_results_click=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b){this.result_highlight=b;return this.result_select()}},a.prototype.search_results_mouseover=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b)return this.result_do_highlight(b)},a.prototype.search_results_mouseout=function(a){if(a.target.hasClassName("active-result")||a.target.up(".active-result"))return this.result_clear_highlight()},a.prototype.choices_click=function(a){a.preventDefault();if(this.active_field&&!a.target.hasClassName("search-choice")&&!a.target.up(".search-choice")&&!this.results_showing)return this.results_show()},a.prototype.choice_build=function(a){var b,c;b=this.container_id+"_c_"+a.array_index,this.choices+=1,this.search_container.insert({before:this.choice_temp.evaluate({id:b,choice:a.html,position:a.array_index})}),c=$(b).down("a");return c.observe("click",d(function(a){return this.choice_destroy_link_click(a)},this))},a.prototype.choice_destroy_link_click=function(a){a.preventDefault(),this.pending_destroy_click=!0;return this.choice_destroy(a.target)},a.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.value.length<1&&this.results_hide(),this.result_deselect(a.readAttribute("rel"));return a.up("li").remove()},a.prototype.result_select=function(){var a,b,c;if(this.result_highlight){a=this.result_highlight,this.result_clear_highlight(),a.addClassName("result-selected"),this.is_multiple?this.result_deactivate(a):this.result_single_selected=a,c=a.id.substr(a.id.lastIndexOf("_")+1),b=this.results_data[c],b.selected=!0,this.form_field.options[b.options_index].selected=!0,this.is_multiple?this.choice_build(b):this.selected_item.down("span").update(b.html),this.results_hide(),this.search_field.value="",typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()}},a.prototype.result_activate=function(a){return a.addClassName("active-result").show()},a.prototype.result_deactivate=function(a){return a.removeClassName("active-result").hide()},a.prototype.result_deselect=function(a){var b,c;c=this.results_data[a],c.selected=!1,this.form_field.options[c.options_index].selected=!1,b=$(this.container_id+"_o_"+a),b.removeClassName("result-selected").addClassName("active-result").show(),this.result_clear_highlight(),this.winnow_results(),typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()},a.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},a.prototype.winnow_results=function(){var a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q;i=new Date,this.no_results_clear(),g=0,h=this.search_field.value===this.default_text?"":this.search_field.value.strip().escapeHTML(),e=new RegExp("^"+h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),l=new RegExp(h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),q=this.results_data;for(m=0,o=q.length;m<o;m++){b=q[m];if(!b.disabled&&!b.empty)if(b.group)$(b.dom_id).hide();else if(!this.is_multiple||!b.selected){a=!1,f=b.dom_id;if(e.test(b.html))a=!0,g+=1;else if(b.html.indexOf(" ")>=0||b.html.indexOf("[")===0){d=b.html.replace(/\[|\]/g,"").split(" ");if(d.length)for(n=0,p=d.length;n<p;n++)c=d[n],e.test(c)&&(a=!0,g+=1)}a?(h.length?(j=b.html.search(l),k=b.html.substr(0,j+h.length)+"</em>"+b.html.substr(j+h.length),k=k.substr(0,j)+"<em>"+k.substr(j)):k=b.html,$(f).innerHTML!==k&&$(f).update(k),this.result_activate($(f)),b.group_array_index!=null&&$(this.results_data[b.group_array_index].dom_id).show()):($(f)===this.result_highlight&&this.result_clear_highlight(),this.result_deactivate($(f)))}}return g<1&&h.length?this.no_results(h):this.winnow_results_set_highlight()},a.prototype.winnow_results_clear=function(){var a,b,c,d,e;this.search_field.clear(),b=this.search_results.select("li"),e=[];for(c=0,d=b.length;c<d;c++)a=b[c],e.push(a.hasClassName("group-result")?a.show():!this.is_multiple||!a.hasClassName("result-selected")?this.result_activate(a):void 0);return e},a.prototype.winnow_results_set_highlight=function(){var a;if(!this.result_highlight){this.is_multiple||(a=this.search_results.down(".result-selected")),a==null&&(a=this.search_results.down(".active-result"));if(a!=null)return this.result_do_highlight(a)}},a.prototype.no_results=function(a){var b,c,e,f;e=new RegExp("^"+a+"$","i"),f=function(){var a,b,d,f;d=this.results_data,f=[];for(a=0,b=d.length;a<b;a++)c=d[a],e.test(c.value)&&c.selected&&f.push(c);return f}.call(this),b=f.length===0?' <a href="javascript:void(0);" class="option-add">Add this item</a>':"",this.search_results.insert(this.no_results_temp.evaluate({terms:a,add_item_link:b}));if(f.length===0)return this.search_results.down("a.option-add").observe("click",d(function(b){return this.select_add_option(a)},this))},a.prototype.select_add_option=function(a){this.form_field.insert(this.new_option_html.evaluate({terms:a})),Event.fire(this.form_field,"liszt:updated");return this.result_select()},a.prototype.no_results_clear=function(){var a,b;a=null,b=[];while(a=this.search_results.down(".no-results"))b.push(a.remove());return b},a.prototype.keydown_arrow=function(){var a,b,c;a=this.search_results.select("li.active-result");if(a.length){this.result_highlight?this.results_showing&&(c=this.result_highlight.nextSiblings(),b=c.intersect(a),b.length&&this.result_do_highlight(b.first())):this.result_do_highlight(a.first());if(!this.results_showing)return this.results_show()}},a.prototype.keyup_arrow=function(){var a,b,c;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){c=this.result_highlight.previousSiblings(),a=this.search_results.select("li.active-result"),b=c.intersect(a);if(b.length)return this.result_do_highlight(b.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},a.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.down("a"));return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClassName("search-choice-focus")},a.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClassName("search-choice-focus");return this.pending_backstroke=null},a.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select();break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:break;default:return this.results_search()}},a.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:return this.backstroke_length=this.search_field.value.length;case 9:return this.mouse_on_container=!1;case 13:return a.preventDefault();case 38:a.preventDefault();return this.keyup_arrow();case 40:return this.keydown_arrow()}},a.prototype.search_field_scale=function(){var a,b,c,d,e,f,g,h,i;if(this.is_multiple){c=0,g=0,e="position:absolute; left: -1000px; top: -1000px; display:none;",f=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(h=0,i=f.length;h<i;h++)d=f[h],e+=d+":"+this.search_field.getStyle(d)+";";b=(new Element("div",{style:e})).update(this.search_field.value.escapeHTML()),document.body.appendChild(b),g=Element.measure(b,"width")+25,b.remove(),g>this.f_width-10&&(g=this.f_width-10),this.search_field.setStyle({width:g+"px"}),a=this.container.getHeight();return this.dropdown.setStyle({top:a+"px"})}};return a}(),c.Chosen=a,document.observe("dom:loaded",function(b){var c,d,e,f,g;d=$$(".chzn-select"),g=[];for(e=0,f=d.length;e<f;e++)c=d[e],g.push(new a(c));return g}),b=function(a){var b,c;b=new Element.Layout(a);return c=b.get("border-left")+b.get("border-right")+b.get("padding-left")+b.get("padding-right")},c.get_side_border_padding=b}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file