You cannot disable the back button and the keyboard hotkey for this task
from a perl script.
You might need to use a client side program, like a Javascript one.

However, you can make a page not to cache, and to expire immidiately, and
this way if a visitor will press the back button the page won't be shown
automaticly.
However, they will be asked if they want to resend the data to the server
and if the visitors will answer 'yes', the browser will resend it with no
problem.
You need to use this method, and also check on the server that the data was
not submitted for a second time.

To print the http headers for not allowing caching and to set the expiration
date to immidiately expire, use something like:

print <<EOF;
Content-type: text/html
Cache-control: no-cache
Pragma: no-cache
Expires: Thu, 01-Jan-2033 01:01:01 GMT

<html><head>....
...
</html>
EOF

teddy.fcc.ro
[EMAIL PROTECTED]
----- Original Message -----
From: "Catriona Wordsworth" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, August 20, 2003 7:38 AM
Subject: disable back button


Hi guys,

pretty simple stuff I hope, but can someone tell me how to disable the back
button in my perl script?

thanks & regards

Cat



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