// Image_Rotation

if (document.getElementById) { window.onload = swap };
function swap() {
var numimages=6;
rndimg = new Array("images/index_graphic.jpg", 
				   "images/index_graphic2.jpg", 
				   "images/index_graphic3.jpg", 
				   "images/index_graphic4.jpg", 
				   "images/index_graphic5.jpg",
				   "images/index_graphic6.jpg"
); 
x=(Math.floor(Math.random()*numimages));
randomimage=(rndimg[x]);
document.getElementById("banner").style.backgroundImage = "url("+ randomimage +")"; 
}