public function email($address, $text=null, $title=null, $class=null) {
		if (is_null($text)) {
			$text = $address;
		}
		$attributes = $this->getHtmlAttributes(array(
			'title'=>$title,
			'class'=>$class
		));
		return "<a href='mailto:$address'$attributes>$text</a>";
	}