EbayXMLer::isChildExist

public function isChildExist(DOMNode $node, $childName)
{
	$result = false;
	$children = $node->childNodes;

	foreach($children as $childNode)
	{
		if($childNode->nodeName == $childName)
		{
			$result = true;
			break;
		}
	}

	return $result;
}