var j,l="",m="",p="",q="",z="",list= new Array()
  list[list.length]='../asset/5.gif';
  list[list.length]='../asset/4.gif';
  list[list.length]='../asset/3.gif';
  list[list.length]='../asset/2.gif';
  list[list.length]='../asset/1.gif';
  list[list.length]='../asset/6.gif';
  j=parseInt(Math.random()*list.length);
  j=(isNaN(j))?0:j;
    document.write("<img src='"+list[j]+"'>");