good day monks , I need to create a button that will increment value. I am lost. need help. please

basically submit will increment the value $var by 1

need help and guidance , i am a newbie

#!C:\strawberry\perl\bin\perl.exe
use CGI::Session;
use CGI;
use CGI":standard";
use CGI::Carp qw(fatalsToBrowser);
 
$| = 1;
print header;
print start_html;
my $cgi = new CGI;      
my $Session 
  = new CGI::Session( undef, $cgi, {Directory=>'/tmp'} );
        
        
$var =0;
$limit=100;
$submit = param("Submit");
print <<HTML;    
<form>
  <input type="submit" name="Submit" value="add" ><br/></input>
</form>
HTML


if ($submit eq 'add'){
  print  "var is".$var;
  if ($var < $limit){
    $var++;
    print "add".$var;
    $Session->{'MyVar'} = $var;
    print "value is".$var;
    $var = $Session->{'MyVar'};
    print "retrieve".$var."\n";
    print "<br/>\n";
  }
  else{ }
}else{}

print end_html;

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In reply to Submit button increment value by JarJarJoe

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