//页面底部友情链接滚动
function hezuo(id){
  return document.getElementById(id);
 }
 var DocScrollto={
  picH:24,
  scrollstep:3,
  scrolltime:50,
  stoptime:5000,
  tmpH:0,
  Mar:null,
  stop:false,
  init:function(obj){
   DocScrollto.Mar = hezuo(obj); 
   
   DocScrollto.Mar.onmouseover = function(){DocScrollto.stop = true};
   DocScrollto.Mar.onmouseout = function(){ DocScrollto.stop = false};
   
   DocScrollto.child_div=DocScrollto.Mar.getElementsByTagName("li");
   DocScrollto.Mar.innerHTML += DocScrollto.Mar.innerHTML; 
   setTimeout(DocScrollto.start,DocScrollto.stoptime);
  },
  start:function(){
    if(DocScrollto.tmpH < DocScrollto.picH){ 
     DocScrollto.tmpH += DocScrollto.scrollstep; 
     if(DocScrollto.tmpH > DocScrollto.picH )DocScrollto.tmpH = DocScrollto.picH ; 
     DocScrollto.Mar.scrollTop = DocScrollto.tmpH; 
     setTimeout(DocScrollto.start,DocScrollto.scrolltime); 
    }else{ 
     DocScrollto.tmpH = 0; 
     DocScrollto.Mar.appendChild(DocScrollto.child_div[0]); 
     DocScrollto.Mar.scrollTop = 0; 
     setTimeout(DocScrollto.start,DocScrollto.stoptime); 
    } 
  }
 }