图片向上滚动并且鼠标滑过有停顿的特效代码

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图片向上滚动并且有停顿的特效
[code]<table width="165" border="0" cellpadding="4" cellspacing="1" bgcolor="B6B191">
  <tr>
  <td bgcolor="FFFDE8" class="p12h">
    <table width="140" border="0" cellspacing="0" align="center">
      <tr><td>
    <div id="article1" style="width:165;">
      <img   src="http://myarticle.enet.com.cn/images/2007/1025/1193293759309.jpg">   <BR>
      <img   src="http://myarticle.enet.com.cn/images/2007/1025/1193293825379.jpg">  <BR>
      <img   src="http://myarticle.enet.com.cn/images/2007/1025/1193293947469.jpg"> <BR>  
      <img   src="http://myarticle.enet.com.cn/images/2007/1025/1193293979242.jpg">  <BR>
      <img   src="http://myarticle.enet.com.cn/images/2007/1025/1193294025878.jpg">  <BR>
      <img   src="http://myarticle.enet.com.cn/images/2007/1025/1193294047979.jpg">   <BR>
      <img   src="http://myarticle.enet.com.cn/images/2007/1025/1193293979242.jpg">   <BR>
      <img   src="http://myarticle.enet.com.cn/images/2007/1025/1193294109987.jpg">  <BR>
      <img   src="http://myarticle.enet.com.cn/images/2007/1025/1193293979242.jpg">   <BR>
      <img   src="http://myarticle.enet.com.cn/images/2007/1025/1193293979242.jpg"> <BR>
        </div>
        <div id="article2" style="position:absolute;z-index:1;visibility:hidden"></div>
  </td></tr></table>
</td></tr></table>



    <script>
articleHeight=300;
stopscrolla=false;
article1.scrollTop=0;
//more javascript from http://cfan.net.cn
with(article1){
  style.width=0;
  style.height=articleHeight;
  style.overflowX="visible";
  style.overflowY="hidden";
  noWrap=true;
  onmouseover=new Function("stopscrolla=true");
  onmouseout=new Function("stopscrolla=false");
}

preTopa=0; currentTopa=0; stoptimea=0;

function init_srolltext1(){
  article2.innerHTML="";
  article2.innerHTML+=article1.innerHTML;    
  article1.innerHTML=article2.innerHTML+article2.innerHTML;
  setInterval("scrollUp1()",50);
}
function scrollUp1(){
  if(stopscrolla==true) return;
  currentTopa+=1;
  if(currentTopa==68)
  {
   stoptimea+=1;
   currentTopa-=1;
   if(stoptimea==50)
   {
    currentTopa=0;
    stoptimea=0;
   }
  }
  else {  
   preTopa=article1.scrollTop;
   article1.scrollTop+=1;
   if(preTopa==article1.scrollTop){
     article1.scrollTop=article2.offsetHeight-articleHeight;
     article1.scrollTop+=1;
   }
  }

}
init_srolltext1();
      </script>[/code]