SimplePie_Locator::body

						                      array(trim($link->getAttribute('href')),
						                            $this->base));
				}
				else
				{
					$href =
						$this->registry->call('Misc', 'absolutize_url',
						                      array(trim($link->getAttribute('href')),
						                            $this->http_base));
				}
				if ($href === false)
				{
					return null;
				}
				$rel_values = explode(' ', strtolower($link->getAttribute('rel')));
				if (in_array($rel, $rel_values))
				{
					return $href;
				}
			}
		}
		return null;
	}

	public function extension(&$array)
	{
		foreach ($array as $key => $value)