function randomize(min, max) 
{	
if (!min)		
min = 0;	
if (!max)		
max = 1;	
return Math.floor(Math.random()*(max+1)+min);
}
function randomBg() 
{	

var bgs = new Array(); 	
// I took these images from a site with a similar script already only to get example images	// I wrote this script myself	
bgs.push("good-times_bg_1.jpg");	
bgs.push("good-times_bg_1.jpg");	
bgs.push("good-times_bg_1.jpg");	
bgs.push("good-times_bg_1.jpg");	
document.body.style.backgroundImage = "url(" + bgs[randomize(0, bgs.length-1)] + ")";}