yamemex.html

<script src="db.js"></script>
<script>
chrome.browserAction.onClicked.addListener(function(tab) {
    if (tab.url === 'chrome://newtab/') {
        chrome.tabs.create({url: chrome.extension.getURL('blog.html')});
    } else {
        chrome.tabs.sendRequest(tab.id, {openAnnotationWindow: 'please'});
    }
});

function getAnnotation(url, callback) {
    sql('select * from annotations where url = ?', [url], function(t, results) {
        if (results.rows.length === 0) {
            callback(null);
        } else {
            callback(results.rows.item(0));
        }
    });
}

function setAnnotation(request) {
    sql( 'replace into annotations ' +
         '    (timestamp, url, annotation, title, public) ' +
         'values ' +
         '    (datetime(), ?,       ?    ,   ?  ,   ?   ) '
       , [        request.updateAnnotationsFor
         ,                   request.annotations
         ,                           request.title
         ,                                  request['public']
         ]
       );
}

var annotations = {
    'http://code.google.com/chrome/extensions/browserAction.html': 
        'These are the annotations for browserAction.html!'
};

chrome.extension.onRequest.addListener(
    function(request, sender, sendResponse) {
        if (request.updateAnnotationsFor === undefined) return;
        setAnnotation(request);
    }
);

chrome.extension.onRequest.addListener(
    function(request, sender, sendResponse) {
        if (request.getAnnotationsFor === undefined) return;
        getAnnotation(request.getAnnotationsFor, function(row) {
            if (!row) {
                sendResponse({'public': 1});
            } else {
                sendResponse({ annotation: row.annotation
                             , 'public': row.public
                             , title: row.title
                             });
            }
        });
    }
);
</script>