The method of event object is compatible with multiple browsers_javascript skills

Copy code The code is as follows:

function getEvent(){ //Writing compatible with both ie and ff
if(document.all) return window.event;
func=getEvent.caller;
while(func!=null){
var arg0=func.arguments[0];
if (arg0){
if((arg0.constructor==Event || arg0.constructor ==MouseEvent)
|| (typeof(arg0)=="object" && arg0.preventDefault && arg0.stopPropagation)) {
return arg0;
}
}
func=func.caller;
}
return null;
}