having two of these causes each one to jump forwards by 2 months when click next month button

[lauriek]

I've got two simplePickers, for starts at and ends at

var sa_simplePicker = new SimplePicker(['input#starts_at', {zIndex: 100}]);
var ea_simplePicker = new SimplePicker(['input#ends_at', {zIndex: 100}]);

and some simple js to open these when each input is focused. That works fine, but when I have both enabled, in either when popped up, if I click next month it goes forwards two months, And when I close the popup and the on submit function fires, it fires for both (that function just outputs the readableDate to the input value - it ends up in both.