function addEvent(obj, evType, fn)
{ 
	if (obj.addEventListener)
	{
		obj.addEventListener(evType, fn, true);
		return true; 
	}
	else if (obj.attachEvent)
	{
		var r = obj.attachEvent("on" + evType, fn); 
		return r; 
	}
	else
	{ 
		return false; 
	} 
}