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3n/gist:90053

Created April 4, 2009 00:05
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gistfile1.js
/*
Script: Event.addEventOnce.js
Extends the Event class (using .implement) with a method to add an event only once.
*/
Event.implement({
addEventOnce: function(type, func){
this.addEvent(type, function(e){ func(e); this.removeEvent(type, arguments.callee) });
return this;
}
});
Native.implement([Element, Window, Document], {
addEventOnce: Event.prototype.addEventOnce
})
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