Rails spinoffs - Jun 2006 - Group checkbox toggling

This isn''t really a scriptaculous question, but it might be interesting
anyway.

I''m generating a rails app and in one form I have a grid of check-boxes
(rows = A..H and col=1..12).

I would like to put a checkbox in the column/row headers to toggle the
boxes in a particular row or column.  Each box has a name like
''position_A1'' or ''position_H12''.

My preferred approach would be to get the name of each checkbox that
matches a particular pattern... say /position_A\d+/.  However, I can''t
seem to find a way to do this in JS.

Any suggestions of how to do this?


_Kevin
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Kevin Olbrich wrote:
> I would like to put a checkbox in the column/row headers to toggle the
> boxes in a particular row or column.  Each box has a name like
> ''position_A1'' or ''position_H12''.
Why not just use radio buttons. That is what they are for and they will 
work without Javascript enabled.
> Any suggestions of how to do this?
Maybe give each checkbox in a group a class name? Then use 
document.getElementsByClassName().

On Friday, June 02, 2006, at 2:49 PM, Eric Anderson
wrote:
>Kevin Olbrich wrote:
>> I would like to put a checkbox in the column/row headers to toggle the
>> boxes in a particular row or column.  Each box has a name like
>> ''position_A1'' or ''position_H12''.
>
>Why not just use radio buttons. That is what they are for and they will
>work without Javascript enabled.
>
>> Any suggestions of how to do this?
>
>Maybe give each checkbox in a group a class name? Then use
>document.getElementsByClassName().
>
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Really any kind of button would work.  Essentially what I am trying to  
do is provide some helpers for the user to fill in a potentially large  
grid.  The user may turn on rows A and , and then may want to turn off  
the two at the end of each one.

getElementsByClassName is a good idea, I''ll have to give that a shot.



_Kevin

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