/*hides all the featured product and then show the selected one */
	function swap_featured_product(prefix, id_to_show, ids_string) {
		
		var array_for_ids = ids_string.toArray();
		
		
		array_for_ids.each(function(s, index) {
			$(prefix + s).setStyle({display : 'none'});
		});
		
		array_for_ids.each(function(s, index) {
			$(prefix + 'link_'  + s).removeClassName('current');
		});

		
		$(prefix + 'link_' + id_to_show).addClassName('current');
		$(prefix + id_to_show).setStyle({display : 'block'});

		
	}
	
    function showFeaturedPromo(featured_promo_id) {
        
        var featuredPromoImages = $$('img.promoimg');
        featuredPromoImages.each(function(e, index) { 
            e.hide();
        });
        
        $('featured_promo_' + featured_promo_id).show();
    }