Object.extend(Event, {   
	fireEvent:function(/*element Id or it Self*/sElement,/*event Name ,eg. change */sEvent){
		if(document.all) {   
		$(sElement).fireEvent('on'+sEvent);   
		}else{   
		var evt = document.createEvent('HTMLEvents');   
		evt.initEvent(sEvent,true,true);   
		$(sElement).dispatchEvent(evt);   
		}
	}
})