jQuery 1.0.2

                }

                // The request was completed
                if( global )
                    jQuery.event.trigger( "ajaxComplete" );

                // Handle the global AJAX counter
                if ( global && ! --jQuery.active )
                    jQuery.event.trigger( "ajaxStop" );

                // Process result
                if ( ret ) ret(xml, status);

                // Stop memory leaks
                xml.onreadystatechange = function(){};
                xml = null;

            }
        };
        xml.onreadystatechange = onreadystatechange;

        // Timeout checker
        if(timeout > 0)
            setTimeout(function(){
                // Check to see if the request is still happening
                if (xml) {
                    // Cancel the request
                    xml.abort();

                    if ( !requestDone ) onreadystatechange( "timeout" );