function add2cart( prod, params ){
   url = base_url+"ajax-product_add2cart-"+prod;

   $.ajax({
     type: "POST",
     url: url,
     data: params,
     success: function( html ){
      reload_shopping_cart();
     }
   });

}


  function remove_from_cart(id){
    url = base_url+"box-product_remove_from_cart-"+id;

    $.ajax({
     type: "POST",
     url: url,
     dataType: "text",
     contentType: "text/html;charset=utf-8",
     success: function( html ){
       reload_shopping_cart();
     }

   });

  }

  function reload_shopping_cart(){
    url = base_url+"box-product_show_shopping_cart";

    $.ajax({
       type: "POST",
       url: url,
       dataType: "html",
       success: function( html ){
          $("#shopping-cart").html( html );
          $("#shopping-cart").fadeOut(500);
          $("#shopping-cart").fadeIn(500);
       }
     });
  }