مشکل با نمایش تاریخ ماژول

[rezappp]

سلام من از ماژول newsprogk1 استفاده می کنم وقتی نمایش تاریخ رو فعال می کنم تاریخ رو به این صورت نشون میده : سه شنبه , 24 2011 may چطور می تونم این تاریخ رو شمسی کنم به صورت کامل
کد فایل تاریخ رو هم میزارم

<?php

/**
* Gavick Class - date class
* @package Joomla!
* @Copyright (C) 2009 Gavick.com
* @ All rights reserved
* @ Joomla! is Free Software
* @ Released under GNU/GPL License : http://www.gnu.org/copyleft/gpl.html
* @version $Revision: 1.0.1 $
**/

// no direct access
defined('_JEXEC') or die('Restricted access');

/*
    Class GKDate for create customizable datas based on Joomla! 1.5 DB
*/

class GK_DateNP12{

    var $Months;
    var $Days;
    var $MonthsShort;
    var $DaysShort;

    function init(){
        
        $this->Months = array(
            JText::_('JANUARY'),
            JText::_('FEBRUARY'),
            JText::_('MARCH'),
            JText::_('APRIL'),
            JText::_('MAY'),
            JText::_('JUNE'),
            JText::_('JULY'),
            JText::_('AUGUST'),
            JText::_('SEPTEMBER'),
            JText::_('OCTOBER'),
            JText::_('NOVEMBER'),
            JText::_('DECEMBER')
        );
    
        $this->MonthsShort = array(
            JText::_('JAN'),
            JText::_('FEB'),
            JText::_('MAR'),
            JText::_('APR'),
            JText::_('MAY'),
            JText::_('JUN'),
            JText::_('JUL'),
            JText::_('AUG'),
            JText::_('SEP'),
            JText::_('OCT'),
            JText::_('NOV'),
            JText::_('DEC')
        );
        
        $this->Days = array(
            JText::_('MONDAY'),
            JText::_('TUESDAY'),
            JText::_('WEDNESDAY'),
            JText::_('THURSDAY'),
            JText::_('FRIDAY'),
            JText::_('SATURDAY'),
            JText::_('SUNDAY')
        );

        $this->DaysShort = array(
            JText::_('MON'),
            JText::_('TUE'),
            JText::_('WED'),
            JText::_('THU'),
            JText::_('FRI'),
            JText::_('SAT'),
            JText::_('SUN')
        );
    }
    
    function news_date($date_string, $date_format){        
        $year = (int) substr($date_string, 0, 4);
        $month = (int) substr($date_string, 5, 2);
        $day = (int) substr($date_string, 8, 2);
        $hour = (int) substr($date_string, 11,2);
        $minutes = substr($date_string, 14,2);
        
        $day_name = date("l", strtotime($date_string));
        $month_name = '';
        $date_format = ' '.$date_format;
        $output = '';
        
        /**
         D - full day name, 
         s - short day name, 
         s - day (number without 0 prefix), 
         z - day (number with 0 prefix), 
         M - full month name, 
         S - short month name, 
         m - month (number without 0 prefix), 
         Z - month (number with 0 prefix), 
         Y - year
         H - hour in 24h format
         h - hour in 12h format
        **/
        
        for($i = 0; $i < strlen($date_format); $i++)
        {
            $letter = '';
            $letter = substr($date_format, $i, 1);
            
            switch($letter)
            {
                case 'd' : 
                    $output .= $day;
                break;
                
                case 'z' :
                    if($day < 10) $day = '0'.$day;
                    $output .= $day;
                break;
        
                case 'm' : 
                    $output .= $month;
                break;
                
                case 'Z' :
                    if($month < 10) $month = '0'.$month;
                    $output .= $month;
                break;    
                
                case 'Y' : 
                    $output .= $year;
                break;    
        
                case 'D' :
                    switch($day_name){
                        case 'Monday'    : $day_name = $this->Days[0];break;
                        case 'Tuesday'   : $day_name = $this->Days[1];break;
                        case 'Wednesday' : $day_name = $this->Days[2];break;
                        case 'Thursday'  : $day_name = $this->Days[3];break;
                        case 'Friday'    : $day_name = $this->Days[4];break;
                        case 'Saturday'  : $day_name = $this->Days[5];break;
                        case 'Sunday'    : $day_name = $this->Days[6];break;
                    }
            
                    $output .= $day_name;
                break;
        
                case 's' :
                    switch($day_name){
                        case 'Monday'    : $day_name = $this->DaysShort[0];break;
                        case 'Tuesday'   : $day_name = $this->DaysShort[1];break;
                        case 'Wednesday' : $day_name = $this->DaysShort[2];break;
                        case 'Thursday'  : $day_name = $this->DaysShort[3];break;
                        case 'Friday'    : $day_name = $this->DaysShort[4];break;
                        case 'Saturday'  : $day_name = $this->DaysShort[5];break;
                        case 'Sunday'    : $day_name = $this->DaysShort[6];break;
                    }
                
                    $output .= $day_name;
                break;
        
                case 'M' :
                    $month_name =  $this->Months[$month-1];
                    $output .= $month_name;
                break;
        
                case 'S' :
                    $month_name =  $this->MonthsShort[$month-1];
                    $output .= $month_name;
                break;    
                
                case 'H' :
                    $output .= $hour.':'.$minutes; 
                break;
                
                case 'h' :
                    $suf = ($hour > 12) ? JText::_('PM') : JText::_('AM');
                    $output .= (($hour%12 == 0) ? 12 : $hour%12).':'.$minutes.$suf; 
                break;
                
                default :
                    $output .= $letter;
                break;
            }
        }
        
        return $output;
    }

}

/**/
/**/
/**/