var mrc_banners = {
	get_count_left: function(){
		if( $('#id_promo_pos').offset().top < $('#pos_bnn_l').offset().top) {
			return 1;
		}
		return Math.ceil(($('#footer').offset().top - $('#pos_bnn_l').offset().top)/250);
	},
	init: function(){
		var tot= this.get_count_left();
		var src= "banners.php?type=1&position=izquierda&node=banners_l&count=" + tot + "&section=" + $_SERVER['basename'];
		$.getScript(src);
		var src= "banners.php?type=1&position=abajo&node=promo_btm&count=1&section=" + $_SERVER['basename'];
		$.getScript(src);
	}
};