RBanner = {
	_list: new Array(),
	push: function(uri, img, title, alt) {
		var newBanner = new Array();
		newBanner['uri'] = uri;
		newBanner['img'] = img;
		newBanner['title'] = title;
		newBanner['alt'] = alt;
		this._list[this._list.length] = newBanner;
	},
	popRandom: function() {
		var random_index = Math.floor(Math.random()*this._list.length);
		var banner = this._list[random_index];
		this._list.splice(random_index, 1);
		return banner;
	},
	popTagged: function() {
		var banner = this.popRandom();
		document.write('<a href="'+banner['uri']+'" class="listad"><img src="'+banner['img']+'" alt="'+banner['alt']+'" title="'+banner['title']+'" width="180" height="75" border="0"/></a>');
	}

}