#!/usr/bin/perl -w
use CGI qw(param standard);
use strict;

my $query = new CGI;
my $referrer = $query->param("ref");
my $location = $query->param("place");

if ($referrer){
    $referrer =~ tr/A-Z/a-z/;
    open(REF, ">>referrer.txt") or default('Cant open/write, $!');
    print REF "$referrer\n";
    close(REF);
}elsif ($ENV{'HTTP_REFERER'}) {
    open(REF1, ">>referrer.txt") or default('Cant open/write, $!');
    print REF1 "$ENV{'HTTP_REFERER'}\n";
    close(REF1);
}

if ($location eq ""){
    &main
}elsif ($location eq lc("misc")){
    &misc
}elsif ($location eq lc("links")){
    &links
}else{
    default('Where are you trying to go?');
}

sub links{
    print "links\n";
}

sub misc{
    print "misc\n";
}

sub default{
    print "Theres an error: @_";
}

sub main{
    print "this is sub main!";
}