PerlTransHandler problem

[Rasoul Hajikhani]

Hello folks,
I am trying to implement a simple PerlTransHandler to change:

http://myserver/

to 

http://myserver.rhythm.com/

And here is my code:

package MIS::GENERAL::FixURL;

use Apache::Constants qw(DECLINED);

use strict;

sub handler
{
        my $r   = shift;
        my $uri = $r->uri;

        return DECLINED if ($uri =~ m/^.+\.rhythm\.com$/)

        $uri    =~ s/^(.+)/$1\.rhythm\.com/;
        $r->uri($uri);
        
        return DECLINED;
}

1;

Here is my https.conf entry:
PerlTransHandler MIS::GENERAL::FixURL

And here is my error when I type: s7.rhythm.com

Invalid URI in request GET / HTTP/1.0

But I get no error with: http://s7/

Can some one tell me what am I doing wrong?

Thanks in advance
-r