function goToCart(product_id){
	var qty = document.getElementById(product_id + "_qty").value;
	var size = document.getElementById(product_id + "_size");
	var product_name = document.getElementById(product_id + "_product").value;
	var units = document.getElementById(product_id + "_units").value;
	var product_desc = size.options[size.selectedIndex].text;
	var index = product_desc.indexOf("-");
	

	window.location="shopping_cart.php?product=" + product_name + " " + product_desc.slice(0, index) + "&price=" + size.value +"&qty=" + qty +"&units=" + units;
}