Xml命名空间的问题

[zengxin2008]

xml格式如下：现在是想去掉<image:image>的xmlns，试了好多办法就是不行，真是纠结啊，有哪位大侠知道这个怎么弄，帮个忙，谢谢啦
<urlset xmlns="http://www.google.com/schemas/sitemap/0.9">
- <url>
<loc>http://www.StudyBusiness.com/Pview/14-3-3-antibody-14503-1-AP-PVIEW.htm</loc>
- <image:image xmlns:image="http://www.google.com/schemas/sitemap/0.9">
<image:loc>http://www.StudyBusiness.com/Products/Pictures/14-3-3-Antibody-14503-1-AP-p47046wb.jpg</image:loc>
</image:image>
- <image:image xmlns:image="http://www.google.com/schemas/sitemap/0.9">
<image:loc>http://www.StudyBusiness.com/Products/Pictures/14-3-3-Antibody-14503-1-AP-p47046wb.jpg</image:loc>
</image:image>
- <image:image xmlns:image="http://www.google.com/schemas/sitemap/0.9">
<image:loc>http://www.StudyBusiness.com/Products/Pictures/14-3-3-Antibody-14503-1-AP-p46941wb.jpg</image:loc>
</image:image>
- <image:image xmlns:image="http://www.google.com/schemas/sitemap/0.9">
<image:loc>http://www.StudyBusiness.com/Products/Pictures/14-3-3-Antibody-14503-1-AP-p46941wb.jpg</image:loc>
</image:image>
- <image:image xmlns:image="http://www.google.com/schemas/sitemap/0.9">
<image:loc>http://www.StudyBusiness.com/Products/Pictures/14-3-3-Antibody-14503-1-AP-IF3568.jpg</image:loc>
</image:image>
- <image:image xmlns:image="http://www.google.com/schemas/sitemap/0.9">
<image:loc>http://www.StudyBusiness.com/Products/Pictures/14-3-3-Antibody-14503-1-AP-IF3568.jpg</image:loc>
</image:image>
</url>
</urlset>

[机器人]

直接字符串Replace不行？Replace掉下面两个字符串。
"image:", "xmlns:image="http://www.google.com/schemas/sitemap/0.9"