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blatyo/observe_once.js

Created September 11, 2009 15:11
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observe_once.js
Element.addMethods({
observeOnce: function(element, eventName, handler){
function unobserve(event){
event.element().stopObserving(eventName, ubobserve);
handler(event);
}
Element.observe(element, eventName, unobserve);
}
});
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