code: function setInnerText($text, $parser = null) {
  		$this->clear();
  		if (trim($text)) {
  			if ($parser === null) {
  				$parser = new $this->parserClass();
  			}
  			$parser->root =& $this;
  			$parser->setDoc($text);
  			$parser->parse_all();
  		}
  		return (($parser && $parser->errors) ? $parser->errors : true);
  	}
docs: Similar to JavaScript innerText, will replace child nodes with new text
  @param string $text
  @param HtmlParserBase $parser Null to auto create instance
  @return bool|array True on succeed, array with errors on failure