#!/usr/bin/perl -w
use CGI qw(:standard);
#use Fcntl qw(:flock :seek);
my $outfil = "as.txt";
if (param('RespName')) {} else {&dienice("Name");}
if (param('Q1')) {} else {&dienice("You did not answer Q1");}
if (param('Q2')) {} else {&dienice("You did not answer Q2");}

$next_page = "127.0.0.1/loc.htm";

if (param('Q1')) {open(OUT, ">>$outfil");
   flock(OUT, 2);   
   seek(OUT, 0, 2); 
    print OUT (param(RespName), param(Q1),param(Q2), "\n";
   close(OUT)} 
print header;
print start_html("Thank You");
print  ("<Center>");
print ("Thank You ", param('RespName')," for your responses.! ", "\n </center> \n<BR>" );

print "Status: 302 Moved\nLocation: $next_page\n\n";

print (" </center> \n<BR>");
print end_html;
sub dienice {
    my($msg) = @_;
    print header;
    print start_html("Error");
    print h2("Sorry !");
    print $msg;
    print end_html;
    exit}