if (screen.width >1024) 
     {

        suspendcode="<DIV id=\"lovexin\" style='right:276px;POSITION:absolute;TOP:270px;z-index:-1'>";
     }
     else
     {


       suspendcode="<DIV id=\"lovexin\" style='right:20px;POSITION:absolute;TOP:270px;bottom:;z-index:100'>";
}
     
   
   
　　var recontent='<img src="http://www.yijiatg.com/tgw/ad/upload/1.gif" border=0 width="100" height="400" alt="" align=top>';

　　document.write(suspendcode); 
　　document.write(recontent); 
　　document.write("</div>"); 
　　window.setInterval("heartBeat()",1);


  function heartBeat(){ 
　　　　var diffY;
        var ad,cur;
　　　
        ad=document.getElementById("lovexin");
        curTop=parseInt(ad.style.top );
        curb=parseInt(ad.style.bottom );

　　　　if(ad.offsetHeight + curTop > document.body.clientHeight + document.body.scrollTop - 1) 
        { 
                curTop = document.body.scrollTop + document.body.clientHeight - ad.offsetHeight; 
                ad.style.top=curTop;
        } 
           
        if(curTop < document.body.scrollTop) 
         { 
                curTop = document.body.scrollTop; 
                ad.style.top=curTop;
         } 

        if(curTop > document.body.scrollTop) 
         { 
                curTop = document.body.scrollTop; 
                ad.style.top=270+"px";
         } 
       if(curTop > 1000+"px")
       {
        ad.style.bottom=270+"px";

        }
        
        

　　　　
　　　　
　　}