Xw = {
	init : function(){
		window.onscroll = this.onScroll;
		window.onresize = this.onResize;
	},
	show : function(id,f){
		var obj = Xz.getObject(id);
		var s = obj.style;
		if( f ){
			s.display = "block";
		}else{
			s.display = "none";
		}
	},
	setLeft : function(obj,l){
		var s = obj.style;
		s.left = l + "px";
	},
	setTop : function(obj,t){
		var s = obj.style;
		s.top = t + "px";
	},
	setPos : function(id,pos){
		var obj = Xz.getObject(id);
		this.setLeft(obj,pos[0]);
		this.setTop(obj,pos[1]);
	},
	onScroll : function(){
		if( Xo.isShow() ){
			Xo.onScroll();
		}
	},
	onResize : function(){
		if( Xo.isShow() ){
			Xo.onResize();
		}
	}
};