Hi,

There are several ways, which can be devided into a GET and a POST.

For simple requests, I prefer LWP::UserAgent.

This is very simple:

use LWP::UserAgent;
 
my $url="http://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi";
 
my $ua=LWP::UserAgent->new();
foreach my $i ( 0..10 ) { # create your own loop here
   my $rform= {
          val  => $i,
          dba  =>"Nucleotide",
          dopt =>"xml",
          txt  =>"on",
          };
 
    my $request=$ua->post($url, $rform);
 
    if ($request->is_success) {
        print $request->content; # do what you like here
    }
    else {
        print $request->error_as_HTML;
    }
}
[download]

I hope this helps
Dr. Mark Ceulemans
Senior Consultant
IT Masters, Belgium