UBB.Developers Forums Community Development Programming PHP and Server-side Scripting Form calculating on the fly?

Hiya...
How would i do to create a script that takes the value from 2 or more form fields and adds it then puts it out into another field?
Kinda like... uh...

Price: 2
Shipping: 4

Total: 6

Im a newbie to CGI so please keep it simple if you can help

Thanks...

umm... thats kinda easy here!
-----------------code-------------------
#!/usr/bin/perl
use CGI qw(:standard);
print "Content-type: text/htmlnn";

$var1 = param('fieldname');
$var2 = param('fieldname2');
#if it is supposed to be mathamatical

$added = $var1 + $var2;

print "your text here $var1
" ;
print "your text here $var2
" ;
print "

---

";
print "your text here $added
";

------------------
check out my site at http://www.ultimategamers2000.com

Well the full script:

#!/usr/bin/perl
use CGI qw(:standard);
print "Content-type: text/htmlnn";
$var1 = param('fieldname');
$var2 = param('fieldname2');
$act = param('act');
#if it is supposed to be mathamatical

if ($act eq ""){
&main;
}else{
&total;
}
sub main{
print<

Enter number of some thing you want:
Enter number of some thing else you want:
MAIN
}
sub total{
$added = $var1 + $var2;

print "your text here $var1
" ;
print "your other text here $var2
" ;
print "

---

";
print "your text here $added
";
}

------------------

smart ass

------------------
check out my site at http://www.ultimategamers2000.com

Well its true!

------------------

Thanks a lot )
I'll go to try it now

Hmm...
This doesnt show the total untill i push submit..
Any way to make it show it as soon as i enter the numbers?

That would be javascript.

------------------

Aww damn
Any idea how to do that? hehe

No.

------------------

Well:

I think

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This message has been edited by Em8 on January 14, 2001 at 11:56 AM

Well, thanks for your help..
But i cant get it to work, hehe, i'll ask in the java forum