var AdvertTimerID = null;
var Adverts = new Array();

function AddAdvert(id, filename, link, isFlash) {
	var advert = {
		id: id,
		link: link,
		img: new Image(),
		isFlash: isFlash
	}
	advert.img.src = "Adverts/" + filename;

	Adverts.push(advert);
}

function ChangeAdvert() {
	if (Adverts.length > 0) {
		// Select one at random
		var Advert = Adverts[Math.floor(Math.random() * Adverts.length)];

		if (Advert.isFlash) {
			document.cookie = "AdvertLink=" + Advert.link;
			document.getElementById("divAdvert").style.display = "none";
			document.getElementById("objFlashAdvert").style.display = "block";
			document.getElementById("objFlashAdvert").innerHTML = "<param name=\"movie\" value=\"" + Advert.img.src + "\"><embed src=\"" + Advert.img.src + "\" width=\"300\" height=\"190\"></embed>";
		}
		else {
			document.cookie = "AdvertLink=" + Advert.link;
			document.getElementById("divAdvert").style.display = "block";
			document.getElementById("objFlashAdvert").style.display = "none";
			document.getElementById("divAdvert").innerHTML = "<a href=\"AdvertPopup.aspx?AdvertID=" + Advert.id + "\" target=\"_blank\"><img src=\"" + Advert.img.src + "\" /></a>";
		}
	}

	AdvertTimerID = setTimeout("ChangeAdvert()", 60000);
}