var j,d="",l="",m="",p="",q="",z="",list= new Array()

 list[list.length]='/images/header1.png';
 list[list.length]='/images/header2.png';
 list[list.length]='/images/header3.png';
 list[list.length]='/images/header4.png';
 list[list.length]='/images/header5.png';



j=parseInt(Math.random()*list.length);
	  j=(isNaN(j))?0:j;

 
   document.write("<img src='"+list[j]+"' alt=''/>");