var tid = null;
var page;

function crossfade(srcid, destid, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	for(var i = 0; i <= 100; i++) {
		setTimeout("changeOpac(" + i + ",'" + destid + "')",(timer * speed));
		setTimeout("changeOpac(" + (100 - i) + ",'" + srcid + "')",(timer * speed));
		timer++;
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
	var object = document.getElementById(id).style;
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
} 

function cycle(pages, ms)
{
    if (tid == null) page = pages - 1;
    
	var hotdealspage = document.getElementById("hotdealspage" + (page + 1));
	page = (page + 1) % pages;
	var hotdealspagenext = document.getElementById("hotdealspage" + (page + 1));
	
	hotdealspagenext.style.display = "";
	hotdealspage.style.display = "none";
	crossfade(hotdealspage.id, hotdealspagenext.id, 1000);
	
	tid = setTimeout("cycle(" + pages + ", " + ms + ");", ms);
}