rnd.today=new Date();
rnd.seed=rnd.today.getTime();

function rnd() {
        rnd.seed = (rnd.seed*9301+49297) % 233280;
        return rnd.seed/(233280.0);
};

function rand(number) {
        return Math.ceil(rnd()*number);
};
function swapSideArt() {
	var randomNumber=rand(39)
	
	document.images['image1'].src = "MetaCyber" + randomNumber + ".jpg" ;
	window.setTimeout('swapSideArt()',1500);
}