如何实现同页面出现多组无缝图片滚动?
常见的代码是 
  <div   id= "demo ">  
        <div   id= "demo1 ">  </div>  
        <div   id= "demo2 ">  </div>  
  </div>  
  <script>  
 var   speed=30 
 demo2.innerHTML=demo1.innerHTML 
 function   Marquee(){ 
 if(demo2.offsetTop-demo.scrollTop <=0) 
 demo.scrollTop-=demo1.offsetHeight 
 else{ 
 demo.scrollTop++ 
 } 
 } 
 var   MyMar=setInterval(Marquee,speed) 
 demo.onmouseover=function()   {clearInterval(MyMar)} 
 demo.onmouseout=function()   {MyMar=setInterval(Marquee,speed)} 
  </script>      
 我想请问大家,如果一个页面出现两组滚动的图片,怎么做呢? 
 js要写两个除了id不同其它的都相同的程序么?     
------解决方案--------------------
把滚动的JS部分用函数封装起来,然后传ID进去分别调用。   
  <BODY>  
  <div style= "float:left; ">  
  <div id=demo1 style=overflow:hidden;height:150;width:182;background:#FFFFFF;color:#ffffff>  
  <div id=demo11>  
  <img src= "http://www.csdn.net/Images/logo_csdn.gif " border= "1 " hspace= "2 ">  
  <img src= "http://images.csdn.net/20070306/API120[1].60.gif " border= "1 " hspace= "2 ">  
  <img src= "http://www.csdn.net/Images/logo_csdn.gif " border= "1 " hspace= "2 ">  
  <img src= "http://images.csdn.net/20070306/API120[1].60.gif " border= "1 " hspace= "2 ">  
  </div>  
  <div id=demo12>  </div>  
  </div>  
  </div>    
  <div style= "float:right; ">  
  <div id=demo2 style=overflow:hidden;height:150;width:182;background:#FFFFFF;color:#ffffff>  
  <div id=demo21>  
  <img src= "http://www.csdn.net/Images/logo_csdn.gif " border= "1 " hspace= "2 ">  
  <img src= "http://images.csdn.net/20070306/API120[1].60.gif " border= "1 " hspace= "2 ">  
  <img src= "http://www.csdn.net/Images/logo_csdn.gif " border= "1 " hspace= "2 ">  
  <img src= "http://images.csdn.net/20070306/API120[1].60.gif " border= "1 " hspace= "2 ">  
  </div>  
  <div id=demo22>  </div>  
  </div>  
  </div>  
  <script>  
 var speed=30; 
 function roll(demo,demo1,demo2){//将控制图片滚动的JS封装起来 
 demo2.innerHTML=demo1.innerHTML; 
 function Marquee(){ 
   if(demo2.offsetTop-demo.scrollTop <=0) 
     demo.scrollTop-=demo1.offsetHeight; 
   else{ 
     demo.scrollTop++; 
   } 
 }   
 var MyMar=setInterval(Marquee,speed); 
 demo.onmouseover=function() {clearInterval(MyMar)} 
 demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)} 
 }   
 roll(demo1,demo11,demo12);//左边一组 
 roll(demo2,demo21,demo22);//右边一组 
  </script>  
  </BODY>
------解决方案--------------------http://community.csdn.net/Expert/topic/5283/5283616.xml?temp=.2678949
------解决方案--------------------http://www.carsclub.com.cn 看这里就是两组
------解决方案--------------------我试了下  
 yiran5467(依苒) 
 的可以啊/ie/firefox都行
------解决方案--------------------借宝地一问,为什么用yiran5467(依苒) 的方法,其中的类似demo.scrollTop++;这样的赋值都不好使了呢, demo.scrollLeft 始终为0!请高手指点!
------解决方案--------------------