var tijdleft = 0;

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 setpicture() {
	tijdleft = 5000;

	nummer = rand(19);

	document.plaatje.src = 'pics/rotate/foto'+nummer+'.jpg';

	id = setTimeout("setpicture()", tijdleft);
}

id = setTimeout("setpicture()", tijdleft);