while (<DATA>) {
  blah
}
_DATA_
http://www.domain.com/path/to/RSS/feed.xml
http://www.domain.com/path/to/second/RSS/feed.xml

##</code><code>##

my $url1 = $cgi->param('url1');
my $url2 = $cgi->param('url2');

while (<DATA>) {
  blah
}
_DATA_
$url1
$url2