From: Brian Candler <b.candler@...>
Date: 2008-10-23T18:07:16+09:00
Subject: Re: using buttons in CGI

Asaf Asaf wrote:
> I have a problem, I have table such that each line on it is textfield
> (something that I defined). I want to make a button, which isn't the
> 'submit' or 'reset' button, such that when I click on it, a new line on
> this table will be made.
> After big number of attempts I succeed making two forms, such that on
> one form I have 'submit' button, that clicking on it update the page
> with a new line, my problem is : if someone write something on the table
> (on one of the text-fields) then clicking on this button won't save the
> data that he entered. and because the 'submit' button that responsable
> to the new line isn't in the form of the table, I can't get the data of
> the table using cgi.params[...] after the refreshing of the page with
> the new line.

You just need another submit button within the original form, something 
like this (untested):

<form action="foo.cgi">
  <input type="submit" name="submit" value="new row">
  <br />
  <input type="submit" name="submit" value="submit">
</form>

Then in your CGI you check the value of the "submit" parameter to see 
whether it was "new row", in which case you perform the alternate action 
of re-rendering the form with an additional row.

For more info go to www.w3.org, click on "HTML" in the left-hand side, 
then under "What" click "HTML 4.01", then click on "Forms" (17) in the 
quick table of contents.

This will let you navigate to:
http://www.w3.org/TR/html401/interact/forms.html#submit-button

www.w3.org is an excellent resource for anything about HTML, XML, CSS 
etc.
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