speeds=5000;
var $ =function(i){return document.getElementById(i);}
function cright(c,r){
try{
  for(i=1;i<7;i++){
 $("r"+c+i).src="http://images.cms.yidaba.com/promote/images/net_02.gif";
  }
}catch(err){}
 $("r"+c+r).src="http://images.cms.yidaba.com/promote/images/net_01.gif";
}