Required Feild

[cshack]

I have the following script installed on my site:

<form method="POST" action="

http://allianceleague.co.uk/cgi-bin/mailer/mailer.cgi">

<input type="hidden" name="Redirect" value="

http://allianceleague.co.uk">

<input type="hidden" name="To" value="postmaster@allianceleague.co.uk">
<p><small><font face="Verdana">Your name:<br>
<input type="text" name="name" size="15">
</font></small></p><p><small><font face="Verdana">Your email address:<br>
<input type="text" name="From" size="15">
<br><br>Your message:<br>
<textarea rows="4" name="message" cols="43"></textarea>
<br><br>
<input type="submit" value="Send message">
</font></small></p>
</form>


What I need to do now is to make sure certain fields have been filled in before the form is sent.

Does anyone know of a couple of lines of script I can add to the original so that when someone doesn't fill their email address in (for example) it re-directs to another page (created by me) saying so.

Many thanks in advance

 

[tviman]

What you're looking for is a javascript validation routine. Go to the javascript forum and do a kekyword search on "form validation" and you'll get several pages of script examples, hints, and tips.

There's always a better way. The fun is trying to find it!

 

[ishnid]

Of course, javascript validation is easily bypassed if users want to be malicious, so it shouldn't be used to replace a server-side system and shouldn't be considered to be a security feature.

It's very useful to aid the server-load though (i.e. get the user's own computer's processing power to decide if the fields were correctly filled in).