'.htmlspecialchars(print_r(array(
                'success'=> false, 
                'data'=> array(), 
                'errorMsg' => $str,
                'message' => $str, // compate with exeption / loadexception.
                'errors' => $errors ? $errors : true, // used by forms to flag errors.
                'authFailure' => !empty($errors['authFailure']),
            ),true));
            exit;
                
        }
        
        echo $this->jsencode(array(
            'success'=> false, 
            'data'=> array(),
            'code' => $type,
            'errorMsg' => $str,
            'message' => $str, // compate with exeption / loadexception.
            'errors' => $errors ? $errors : true, // used by forms to flag errors.
            'authFailure' => !empty($errors['authFailure']),
        ),true);
        
        
        exit;
        
    }
    
     
   
    
    
    
    /**
     * output data for grids or tree
     * @ar {Array} ar Array of data
     * @total {Number|false} total number of records (or false to return count(ar)
     * @extra {Array} extra key value list of data to pass as extra data.
     * 
     */
    function jdata($ar,$total=false, $extra=array(), $cachekey = false)
    {
        // should do mobile checking???
        if ($total == false) {
            $total = count($ar);
        }
        $extra=  $extra ? $extra : array();
        
        
        $retHTML = isset($_SERVER['CONTENT_TYPE']) && 
                preg_match('#multipart/form-data#i', $_SERVER['CONTENT_TYPE']);
        
        if ($retHTML){
            if (isset($_REQUEST['returnHTML']) && $_REQUEST['returnHTML'] == 'NO') {
                $retHTML = false;
            }
        } else {
            $retHTML = isset($_REQUEST['returnHTML']) && $_REQUEST['returnHTML'] !='NO';
        }
        
        if ($retHTML) {
            
            header('Content-type: text/html');
            echo "'), array('\u003c','\u003e'),
                        $this->jsencode(array('success' =>  true, 'total'=> $total, 'data' => $ar) + $extra, false));
            echo "]]>";
            exit;
        }
        
        
        // see if trimming will help...
        if (!empty($_REQUEST['_pman_short'])) {
            $nar = array();
            
            foreach($ar as $as) {
                $add = array();
                foreach($as as $k=>$v) {
                    if (is_string($v) && !strlen(trim($v))) {
                        continue;
                    }
                    $add[$k] = $v;
                }
                $nar[] = $add;
            }
            $ar = $nar;
              
        }
        
      
        $ret =  $this->jsencode(array('success' =>  true, 'total'=> $total, 'data' => $ar) + $extra,true);  
        
        if (!empty($cachekey)) {
            
            $fn = ini_get('session.save_path') . '/json-cache'.date('/Y/m/d').'.'. $cachekey . '.cache.json';
            if (!file_exists(dirname($fn))) {
                mkdir(dirname($fn), 0777,true);
            }
            file_put_contents($fn, $ret);
        }
        
        echo $ret;
        exit;
    }
    
    
   
    /** a daily cache **/
    function jdataCache($cachekey)
    {
        $fn = ini_get('session.save_path') . '/json-cache'.date('/Y/m/d').'.'. $cachekey . '.cache.json';
        if (file_exists($fn)) {
            header('Content-type: application/json');
            echo file_get_contents($fn);
            exit;
        }
        return false;
        
    }
    
     function jsencode($v, $header = false)
    {
        if ($header) {
            header("Content-type: text/javascript");
        }
        if (function_exists("json_encode")) {
            $ret=  json_encode($v);
            if ($ret !== false) {
                return $ret;
            }
        }
        require_once 'Services/JSON.php';
        $js = new Services_JSON();
        return $js->encodeUnsafe($v);
        
        
        
    }
    
}