delete the unwanted strings before and after the string in xml file

[bosnovi]

xml file content \[code\]<distributionChannels><distributionChannel type="Wap" id="1"><contentChannelRefs><contentChannelRef id="2"><categories><category link="http://images/11.gif" id="1"><names><name lang="de">Top Downloads</name><namelang="ww">Tops</name></names></category></categories></contentChannelRef></contentChannelRefs></distributionChannel> </distributionChannels>\[/code\]how do i delete the unwanted content which i am reading from an xml file and the output should look as shown below:\[code\]<category link="http://images/11.gif" id="1"><names><name lang="de">Top Downloads</name><name lang="ww">Tops</name></names></category>\[/code\]