Browser browser = clientDoc.getBrowser();
W3CEventImpl event = null;
switch(typeCode)
{
case DOMStdEventTypeInfo.UNKNOWN_EVENT:
event = new W3CEventDefaultImpl(evtListener,request);
break;
case DOMStdEventTypeInfo.UI_EVENT:
event = new W3CUIEventDefaultImpl(evtListener,request);
break;
case DOMStdEventTypeInfo.MOUSE_EVENT: