I am working with this website: <http://bioinfo.uni-plovdiv.bg/microinspector/>

And from the mech-dump, I get 

```
POST http://bioinfo.uni-plovdiv.bg/microinspector/cgi/result-new1.plx
  target_name=                   (text)
  target_sequence=               (textarea)
  Choose an organism : =Choose an organism: (option)   [*Choose an organism:|-NEMATODES------------------|C. elegans/Caenorhabditis elegans|C. briggsae/Caenorhabditis briggsae|Capitella sp. I|Cerebratulus lacteus|Saccoglossus kowalevskii|Schistosoma japonicum|Schistosoma mansoni|Schmidtea mediterranea|Strongylocentrotus purpuratus|Haliotis rufescens|Lottia gigantea|-PLANTS------------------|Arabidopsis thaliana|Zea mays|Oryza sativa|Sorghum bicolor|-VIRUSES------------------|Rhesus lymphocryptovirus|Epstein Barr virus|Human cytomegalovirus|Kaposi sarcoma-associated herpesvirus|Mouse gammaherpesvirus|BK polyomavirus|Herpes Simplex Virus 1|Herpes Simplex Virus 2|Human immunodeficiency virus 1|JC polyomavirus|Mareks disease virus|Mareks disease virus type 2|Merkel cell polyomavirus|Mouse cytomegalovirus|Mouse gammaherpesvirus 68|Rhesus monkey rhadinovirus|Simian virus 40/Human immunodeficiency virus 1|-VIRIDIPLANTAE------------------|Triticum aestivum|Selaginella moellendorffii|Populus trichocarpa|Pinus taeda|Physcomitrella patens|Arabidopsis thaliana|Glycine max|Medicago truncatula|Oryza sativa|Populus trichocarpa|Saccharum officinarum|Sorghum bicolor|Zea mays|Brassica napus|Brassica oleracea|Carica papaya|Lotus japonicus|Vigna unguiculata|Gossypium herbecium|Gossypium hirsutum|Gossypium rammindii|Solanum lycopersicum|Brassica rapa|Vitis vinifera|-ARTHROPODS------------------|Drosophila melanogaster|Drosophila pseudoobscura|Apis mellifera|Anopheles gambiae|Ixodes scapularis/Ixodes scapularise|Bombyx mori|Drosophila ananassae|Drosophila erecta|Drosophila grimshawi|Drosophila mojavensis|Drosophila persimilis|Drosophila sechellia|Drosophila simulans|Drosophila virilis|Drosophila willistoni|Drosophila yakuba|Locusta migratoria|Tribolium castaneum|-VERTEBRATES------------------|Bos taurus|Xenopus tropicalis|Monodelphis domestica|Lemur catta|Lagothrix lagotricha|Gorilla gorilla|Ateles geoffroyi|Ovis aries|Homo sapiens|Fugu rubripes|Macaca nemestrina|Macaca mulatta|Mus musculus|Canis familiaris|Rattus norvegicus|Rattus norvegicus|Pan paniscus|Pan troglodytes|Pongo pygmaeus|Saguinus labiatus|Saguinus labiatus|Sus scrofa|Gallus gallus|Danio rerio|Xenopus laevis|Tetraodon nigroviridis|Pygathrix bieti|Symphalangus syndactylus|Ornithorhynchus anatinus|Cricetulus griseus|-HORDEATES------------------|Branchiostoma floridae|Ciona intestinalis|Ciona savignyi|Oikopleura dioica|-PROTISTAE-------------------|Chlamydomonas reinhardtii|Dictyostelium discoideum|-OTHER-------------------|Amphimedon queenslandica|Hydra magnipapillata|Nematostella vectensis]
  user_small=                    (textarea)
  temperature=37                 (text)
  mfe=-20                        (text)
  Submit=          Search           (submit)
  Reset=<UNDEF>                  (reset)

POST http://www.aardvarkmailinglist.net/sub/account_manager.php?action=add
  cid=20804                      (hidden readonly)
  cqid=LSI                       (hidden readonly)
  lid=12305                      (hidden readonly)
  sub_email=                     (text)
  Submit=Subscribe               (submit)

```

This is what I have so far.

```
use strict;
use warnings;

use WWW::Mechanize;

# create object for browser
my $browser = WWW::Mechanize->new();
my ($sequence, $results);
open (DRG, "<microRNA_target_cspg_drg_output.fa") || die "cannot open microRNA_target_cspg_drg_output.fa";

while (<DRG>) {
        chomp;
        $sequence=$_;
        last; #for testing purposes
}
close (DRG);

$browser->get("http://bioinfo.uni-plovdiv.bg/microinspector/");
$browser->form_number(1);
$browser->field("target_sequence", $sequence);
$browser->field("Choose an organism : ", "Mus musculus");
my $response = $browser->click_button( number => 1);
print $response->content();

```

I am not sure what to do next; I feel like I am not setting the organism correctly (it is a drop down menu so I need to select) but I don't think I am writing it right in the code. 

```
$browser->field("Choose an organism : ", "Mus musculus");

```

In addition, once the form is clicked it goes to a new page (url is POST?). Any help is appreciated. Thank you. I get this when I run the above code

```
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-US">
<head>
<title>A New MiRNA Program</title>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1251" />
</head>
<body>
Status: 500
Content-type: text/html

<h1>Software error:</h1>
<pre>Illegal division by zero at /usr/local/lib/perl5/site_perl/5.8.9/Bio/Graphics/Panel.pm line 237.
</pre>
<p>
For help, please send mail to the webmaster (<a href="mailto:vebaev@uni-plovdiv.bg">vebaev@uni-plovdiv.bg</a>), giving this error message 
and the time and date of the error.

</p>

```

The sequence that is being inputted is this for anyone who wants to try it

AAACACACTGGGGAATGGAGCAAGACAGTCTTTGAATATCAAACACGCAAGGCAATGAGACTACCCATCATAGATATCGCACCCTATGACATTGGGGGTCCTGATCAAGAATTTGGTGTGGACATTGGCCCTGTTTGCTTTTTATAAGCCAAACTCTCTGAAACCCCAGCAAAACAAAAACCACATCCATGTGTTCATCTTGTTTTAATCTTATCAACCAGTGCAAGTGACCAACTAAATTCCAGTTATTTATTTCCAAACTTTTGGAAAAAGCATAATTTGACAAAAAAAGAATACAATTTTTTGCTGTTTCAACCACCCAATACAGGTCAAATGCTTTTGTTTTATTTTTTTACCAATTCCAACTTCAAAATGTCTCAATGGTGCTATAATAAATAAACGTCAACACTTTTATGATAA