public function upload_image($file_ctrl = '', $img_name = 'default', $img_tmp_folder = '', $w, $h){
		$allowedExts = array("jpg", "jpeg", "gif", "png");
		$extension = strtolower(end(explode(".", $_FILES[$file_ctrl]["name"])));
		$img_tmp =dirname(dirname(__FILE__))."/upload/$img_tmp_folder/" . $img_name.'.'.$extension;
		$img_ftp = $this->img_source.'/'.$img_tmp_folder.'/'.$img_name.'.'.$extension;
		
		
		if ((($_FILES[$file_ctrl]["type"] == "image/gif") || 
			($_FILES[$file_ctrl]["type"] == "image/jpeg") || 
			($_FILES[$file_ctrl]["type"] == "image/png") || 
			($_FILES[$file_ctrl]["type"] == "image/pjpeg"))	
			&& ($_FILES[$file_ctrl]["size"] < (15*1024*1024)) && in_array($extension, $allowedExts) && ($_FILES[$file_ctrl]["size"] > 0))
		{
			if ($_FILES[$file_ctrl]["error"] > 0)
			{
				return 1; //Thất bại
			}else{
				if (file_exists($file)){
					return 2;
				} else{
				echo $img_tmp;
					if (move_uploaded_file($_FILES[$file_ctrl]["tmp_name"],$img_tmp))
					{
					
						list($width, $height, $type, $attr) = getimagesize($img_tmp);
						if($w == 0 && $h == 0){
							$this->ftp_put_file($img_ftp, $img_tmp);
							return $img_ftp; // Success
						}else{
							if($width != $w || $height != $h) 
							{
								unlink($img_tmp); 
								return 4;
							} else{
								$this->ftp_put_file($img_ftp, $img_tmp);
								return $img_ftp; // Success
							}
						}
					}
				}
			}			
		}else{
			return 3; //Unsuccess
		}
	}