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

removeEvent:function(obj,evType,fn){
		if(obj.removeEventListener){
			obj.removeEventListener(evType,fn,false);
			return true;
			}else if(obj.detachEvent){
				var r=obj.detachEvent("on"+evType,fn);
				return r;}else{
					return false;
					}
		}