JavaScript event listening example code [compatible with IE, firefox] with comments_javascript skills

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addEventListener is not available in IE. Yes, you need to use attachEvent in IE.
I’m still wondering why it’s running fine in FireFox but an error is reported in IE.
Handling IE and FireFox event listening objects:
var oEventUtil = new Object();
oEventUtil.AddEventHandler = function(oTarget,sEventType,fnHandler)
{
if(oTarget.addEventListener ){
oTarget.addEventListener(sEventType,fnHandler,false);
} else if(oTarget.attachEvent){
oTarget.attachEvent('on' sEventType,fnHandler);
} else{
oTarget['on' sEventType] = fnHandler;
}
};
Script House Editor’s Note: Generally speaking, there is no problem, but in actual use, for event objects , need to use oEventUtil.AddEventHandler(document.getElementById("jb51"),'click',oT);