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addEvent.js
39 lines (36 loc) · 1.24 KB
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addEvent.js
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//=====================================================================
// Event Listener
// by Scott Andrew - http://scottandrew.com
// edited by Mark Wubben, <useCapture> is now set to false
// Now allows callback lists for objects with an Id - Alex Tingle
//=====================================================================
function firetree_addEvent(obj, evType, fn)
{
if(obj.id){
if(!document._callbacks_by_id)
document._callbacks_by_id=new Array();
if(!document._callbacks_by_id[obj.id])
document._callbacks_by_id[obj.id]=new Array();
document._callbacks_by_id[obj.id].push(fn);
fn=callback;
}
if(obj.addEventListener){
obj.addEventListener(evType, fn, false);
return true;
} else if (obj.attachEvent){
var r = obj.attachEvent('on'+evType, fn);
return r;
} else {
return false;
}
function callback(e)
{
var n;
if(e.currentTarget) n=e.currentTarget; // Mozilla/Safari/w3c
else if(window.event) n=window.event.srcElement; // IE
else return;
if(n.id && document._callbacks_by_id[n.id])
for(var i=0; i<document._callbacks_by_id[n.id].length; i++)
document._callbacks_by_id[n.id][i](e);
}
}