// The Central Randomizer 1.3 (C) 1997 by Paul Houle (houle@msc.cornell.edu)
// See:  http://www.msc.cornell.edu/~houle/javascript/randomizer.html

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 swap_image(x) {	
			document.images[x].src="images/"+x+"_over.gif";
		}

	
function swap_image_restore(x) {
			document.images[x].src="images/"+x+"_off.gif";
	}