var j,d="",l="",m="",p="",q="",z="",list= new Array()
  list[list.length]='<img src="main/bk/1.gif" height="175" width="148"><img src="main/bk/2.gif" height="175" width="126"><img src="main/bk/3.jpg" height="175" width="173"><img src="main/bk/4.jpg" height="175" width="160">';
  list[list.length]='<img src="main/au/1.jpg" height="175" width="148"><img src="main/au/2.jpg" height="175" width="151"><img src="main/au/3.jpg" height="175" width="151"><img src="main/au/4.jpg" height="175" width="160">';
  list[list.length]='<img src="main/vw/1.jpg" height="175" width="150"><img src="main/vw/2.jpg" height="175" width="150"><img src="main/vw/3.jpg" height="175" width="150"><img src="main/vw/4.jpg" height="175" width="160">';
  list[list.length]='<img src="main/us/1.jpg" height="175" width="148"><img src="main/us/2.jpg" height="175" width="151"><img src="main/us/3.jpg" height="175" width="151"><img src="main/us/4.jpg" height="175" width="160">';
  list[list.length]='<img src="main/mlb/1.jpg" height="175" width="150"><img src="main/mlb/2.jpg" height="175" width="150"><img src="main/mlb/3.jpg" height="175" width="150"><img src="main/mlb/4.jpg" height="175" width="160">';
  j=parseInt(Math.random()*list.length);
  j=(isNaN(j))?0:j;
  document.write(list[j]);