I am parsing the feed: 

```
<item>
<title><![CDATA[Why bring a child into this world? Here&#039;s one reason]]></title>
<guid>http://www.ivillage.co.uk/why-bring-a-child-world-heres-one-reason/169019</guid>
<pubDate>2013-11-21T17:11:00</pubDate>
<type>article</type>
<link>http://www.ivillage.co.uk/why-bring-a-child-world-heres-one-reason/169019</link>
<description><![CDATA[Unilever advert asks: Why bring a child into this world? This viral video will make you cry as you realise that new babi...]]></description>
<media:thumbnail url="http://www.ivillage.co.uk/sites/dev.ivillage.co.uk/files/Unilever-636.jpg" width="636" height="477"/>    
<media:thumbnail url="http://www.ivillage.co.uk/sites/dev.ivillage.co.uk/files/Unilever-636.jpg" width="120" height="90"/>
<dc:creator>Ali Gray</dc:creator>
</item>

```

I want to get the thumbnail url in the parsers delegate: 

```
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName,

```

How to to that ?Thanks