Document::getHead

public function getHead()
{
	if(!$this->getDocumentElement())
	{
		return null;
	}

	foreach($this->getDocumentElement()->getChildNodesArray() as $child)
	{
		/** @var $child Node */
		if($child->getNodeName() === 'HEAD')
		{
			return $child;
		}
	}

	return null;
}