function comparison_add(product_id,plL) {
		if (window.pageYOffset) {
			yP = window.pageYOffset;
		} else if (document.documentElement && document.documentElement.scrollTop) {
			yP = document.documentElement.scrollTop;
		} else {
			yP = document.body.scrollTop;
		}
		document.form_prodsearch.comparison_add.value = product_id;
		document.form_prodsearch.prodlist_limit.value = plL;
		document.form_prodsearch.yPosition.value = yP;
		document.form_prodsearch.submit();	
	}