function slide(z, v) {
	sliders = $$('div.slider');
	slides = new Array();
	for(var k=0;k<sliders.length;k++){
		slides.push(sliders[k].id);
	}
	var eind = slides.length-1;
	if (z == eind) {
		document.getElementById('slide' + z).style.display = "none";
	}
	z = v + 1;
	if (v==-1) {
		z  = 0;
		document.getElementById('slide' + z).style.display = "block";
	} else {
		document.getElementById('slide' + v).style.display = "none";
		document.getElementById('slide' + z).style.display = "block";
		if (z==eind) {
			v  = -2;
		}
	}
	v++;
	var t = setTimeout('slide(' + z + ',' + v + ')',7500);
}