// JavaScript Document
var backgroundImages=new Array(5);
backgroundImages[0]="images/bg_header_1.jpg";
backgroundImages[1]="images/bg_header_2.jpg";
backgroundImages[2]="images/bg_header_3.jpg";
backgroundImages[3]="images/bg_header_4.jpg";
backgroundImages[4]="images/bg_header_2.jpg";

onload=function(){
var e=(document.getElementById)?document.getElementById("headerImage"):(document.all)?document.all.myTableId:(document.layers)?document.myTableId:null;
if(!e)return true;
e.style.backgroundImage="url("+backgroundImages[Math.floor(Math.random()*backgroundImages.length)]+")";
}