$(document).ready(function(){
	
	$("select.size").change(function(){
		var product_id = $("input#product_id").val();
		var product_size_id = $(this).val();
		var product_options = '';
    $("div.product_options select").each(function(){
    	product_options += "&"+$(this).attr("id")+"="+$(this).val();
    });
		$.ajax({		
	    url: site_root+"static_pages/product.ajax.php",
	    data: "function=product_options&product_id="+product_id+"&product_size_id="+product_size_id+product_options,
	    type: "POST",
	    success: function(data){
	      $("div.product_options").replaceWith(data);
	      initializeProductOptions();
	      calculate_product_price();
	    }
	  });
	});
	
	initializeProductOptions();
	
});

function initializeProductOptions()
{
	$("div.product_options select, input#quantity").change(function(){
		calculate_product_price();
	});
}

function calculate_product_price()
{
	var product_id = $("input#product_id").val();
	$.ajax({
    url: site_root+"static_pages/product.ajax.php",
    data: "function=calculate_product_price&"+$("div.product_order form").serialize(),
    type: "POST",
    success: function(data){
      $("span.product_price").html(data);
    }
  });
}