var delta=0.015 
    var collection; 
    function floaters() 
	{ 
        this.items    = []; 
        this.addItem    = function(id,x,y,content) 
                  { 
                    document.write('<DIV id='+id+' style="Z-INDEX: 0; 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()',10); 
                  } 
   } 

        function play() 
        { 
            if(screen.width<=800) 
            { 
                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    = ''; 
            } 
        }    

   if (window.screen.width>=1024) //当分辨率达到 1024 时才显示广告 
   { 
    var theFloaters        = new floaters(); 
    
	theFloaters.addItem('followDiv1',0,450,'<br><a href="http://wj.pxga.gov.cn" target="_blank"><img src="http://www.jxwj.gov.cn/images/mv.gif" width="100" height="100" border="0"></a>');	
    theFloaters.play(); 
   }