// Function is called when we need to calculate MD5.
              
               
                function cart_clean(unit) {

      top.document.getElementById("cart_top").innerHTML = '<img src="/img/ajax-loader.gif" border="0" />';

                    JsHttpRequest.query(
                        "/incl/update_cart.php", // backend
                        {
                            // pass a text value   
                            "clean": 1
                            
                        },
                        // Function is called when an answer arrives. 
                        function(result, errors) {
                            // Write errors to the debug div.
                            //document.getElementById("debug").innerHTML = errors; 
                            // Write the answer.
                           if (result) {
                              top.document.getElementById("iframe").innerHTML = 
                                    result["anser1"];
                               top.document.getElementById("cart_top").innerHTML = 
                                    result["anser"];
                                     top.document.getElementById("cart_img").innerHTML = 
                                    result["anser2"]
                            
            								}
                        },
                        true  //  disable caching
                    );
                }