<SCRIPT type = "text/JavaScript"> var eventutil = {addhandler: function (element, type, Handler) {If (element. addeventlistener) {element. addeventlistener (type, handler, false);} else if (element. attachevent) {element. attachevent ("On" + type, Handler);} else {element ["on" + type] = handler ;}}, getevent: function (event) {return event? Event: window. event;}, gettarget: function (event) {specify urn event. Target? Event. target: event. srcelement;}, preventdefault: function (event) {If (event. preventdefault) {event. preventdefault ();} else {event. returnvalue = false ;}}, removehandler: function (element, type, Handler) {If (element. removeeventlistener) {element. removeeventlistener (type, handler, false);} else if (element. detachevent) {event. detachevent ("On" + type, Handler);} else {element ["on" + type] = NULL ;}, stoppropagation: function (event) {If (event. stoppropagation) {event. stoppropagation ();} else {event. canclebubble = true ;}}</SCRIPT>