Selenium RC Perl脚本如何获取xml页面的源代码?

I wrote a simple perl script with the WWW::Selenium module that interacts with the Selenium RC server and goes to a webpage and downloads the source. I am able to do this with HTML pages. However, I have an XML page I want to download the source of. This is obviously not possible with the 'get_source_html()' function. Below is the script of what i want to do:I wrote a simple perl script with the WWW::Sele