var delta=0.8;
var collection;
var closeB=false;
function floaters() {
	this.items	= [];
	this.addItem	= function(id,x,y,content){
				document.write('<DIV id='+id+' style="Z-INDEX: 10; POSITION: absolute;  width:80px; height:60px;left:'+(typeof(x)=='string'?eval(x):x)+';top:'+(typeof(y)=='string'?eval(y):y)+'">'+content+'</DIV>');
				
				var newItem				= {};
				newItem.object			= document.getElementById(id);
				newItem.x				= x;
				newItem.y				= y;

				this.items[this.items.length]		= newItem;
	}
	this.play	= function(){
				collection				= this.items
				setInterval('play()',30);
	 }
}

function play()
{
	if(screen.width<=800 || closeB)
	{
		for(var i=0;i<collection.length;i++)
		{
			collection[i].object.style.display	= 'none';
		}
		return;
	}
	for(var i=0;i<collection.length;i++)
	{
		var followObj		= collection[i].object;
		var followObj_x		= (typeof(collection[i].x)=='string'?eval(collection[i].x):collection[i].x);
		var followObj_y		= (typeof(collection[i].y)=='string'?eval(collection[i].y):collection[i].y);

		if(followObj.offsetLeft!=(document.body.scrollLeft+followObj_x)) {
			var dx=(document.body.scrollLeft+followObj_x-followObj.offsetLeft)*delta;
			dx=(dx>0?1:-1)*Math.ceil(Math.abs(dx));
			followObj.style.left=followObj.offsetLeft+dx;
			}

		if(followObj.offsetTop!=(document.body.scrollTop+followObj_y)) {
			var dy=(document.body.scrollTop+followObj_y-followObj.offsetTop)*delta;
			dy=(dy>0?1:-1)*Math.ceil(Math.abs(dy));
			followObj.style.top=followObj.offsetTop+dy;
			}
		followObj.style.display	= '';
	}
}

function closeBanner()
{
  closeB=true;
  return;
}

var theFloaters		= new floaters();

theFloaters.addItem('followDiv1','document.body.clientWidth-106',80,'<a href="http://www.ceepa.cn/cate_13/detail_500.html"><img src=images/ad_right.gif width=100 border="0"></a><img src=images/close.gif onClick="closeBanner();">');
theFloaters.addItem('followDiv2',6,80,'<a href="http://www.ceepa.cn/cate_13/detail_499.html"><img src=images/ad_left.gif width=100 border="0"></a><img src=images/close.gif onClick="closeBanner();">');
theFloaters.play();