use CGI;
my $query = new CGI;
my $t = $query->param('type');

##</code><code>##

$type.$t = 1;  #or $type2 = 1 or $type2 = true

##</code><code>##

if ($t == 1) { 
   $type1 = 1;
} elsif ($t == 2) {
   $type2 = 1;
...
}