private function _setContentFromFile() {
		
		// empty original template content
		$this->setContent('');
		
		// check for template file and load it
		if ($filename = $this->getTemplate()) {
			if (file_exists($filename)) {
				$content = trim(file_get_contents($this->_filename));
				$this->setContent($content);
			}
		}
	}