function read_content()
	{
		if ($this->external_source_read) {
			$fct = $this->source_read_name;
			return $fct($this->container);
		} else {
			$content = FALSE;
			if ($handle = @fopen($this->container, 'rb')) {
				$size = @filesize($this->container);
				$content = @fread($handle, $size);
				fclose($handle);
			}
			return $content;
		}
	}