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   <script>

     var delta=0.15
     var collection;
     function floaters() {
         this.items     = [];
         this.additem     = function(id,x,y,content)
                   {
                     document.write(""+content+"");
                   
                     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[i].object.style.display     = "none";
                 }
                 return;
             }
             for(var i=0;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     = "";
             }
         }   
       
     var thefloaters         = new floaters();
         thefloaters.additem("followdiv1","document.body.clientwidth-106",80,"");
     thefloaters.additem("followdiv2",6,80,"");
     thefloaters.play();

</script>

qq在线客服 代码二

<script language="网页特效1.2">
function move(x, y) {
if (document.all) {
object1.style.pixelleft += x;
object1.style.pixeltop += y;}
else
if (document.layers) {
document.object1.left += x;
document.object1.top += y;
}};
function position() {
document.object1.left += -200;
document.object1.top += 0;
document.object1.visibility = "show"
};
function makestatic() {
if (document.all) {object1.style.pixeltop=document.body.scrolltop+100}
else {eval("document.object1.top=eval(window.pageyoffset+20)");}
settimeout("makestatic()",0);}
</script>



<script language="javascript1.2">
if (document.all)
document.write("")
</script>


  
  
   
    
    
   
   
    
    
     
      
      
      
      
      
      
      
     
    
    
   
   
    
    
   
   
    
    
     
      
      
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         http://amos1.taobao.com/msg.ww?v=2&uid=123456789&s=1" target="_blank">
      
      
     
    
    
   
   
    
    
   
  
  
  
  

<script language="javascript1.2">
</script>

<script language="javascript1.2">
if (document.all)
document.write("")
</script>

本文来源：http://www.gdgbn.com/shoujikaifa/26796/