MakeFilesOrDie( $these, $files );
CompareFilesOrDie( $these, $files );


##</code><code>##

$url=$_;
&domain_check();
$x="$competitor.html";


##</code><code>##

my $change = gimmeChange( '20USD', 'milk','cookies' );
sub gimmeChange {
   my( $payment , @items ) = @_;
   my $price = gimmePrice( @items );
   my $diff = $payment - $price;
   if( $payment < $price ){
        warn "You don't have enough money, you need $diff";
   }
   return $diff;
}