protected function getAttributesAsHtml()
	{
		$htmlAttrs = '';
		
		foreach($this->attributes as $attrName => $attrValue) {
			$htmlAttrs .= ' ' . $attrName . (($attrValue === null || strlen($attrValue) === 0)?null:'="' . $attrValue . '"');
		}
		
		return $htmlAttrs;
	}