@kangax -
> elements.shift().observe('click', function(e) {
> elements.invoke('writeAttribute', 'disabled', e.target.checked);
That is just so...elegant. Took me a while to figure it out (missed
that part of the OP's question) and *wow* would I comment it, but
seriously: Nice.
--
T.J. Crowder
tj / crowder software / com
On Apr 28, 12:23 am, kangax <[EMAIL PROTECTED]> wrote:
> I'll try to be careful this time.
>
> 1) Straight-forward way, only checks whether id starts with a string:
> var elements = $$('input[type="checkbox"][id^="match_this_"]');
>
> 2) A little more precise (based on regexp):
> var elements = $$('input[type="checkbox"]').findAll(function(el)
> { return /^match_this_\d$/.test(el.id) });
>
> Then:
>
> elements.shift().observe('click', function(e) {
> elements.invoke('writeAttribute', 'disabled', e.target.checked);
>
> })
>
> - kangax
>
> On Apr 27, 6:40 pm, zoopzoop <[EMAIL PROTECTED]> wrote:
>
> > Hi!
>
> > I want to (as the topic suggests) get a list/array of all elements on
> > a page whose id starts with a string using Prototype.
> > For example, I have several checkboxes like this:
>
> > <input type="checkbox" id="match_this_1">
> > <input type="checkbox" id="match_this_2">
> > <input type="checkbox" id="match_this_3">
> > <input type="checkbox" id="match_this_4">
>
> > I want to find these elements on my page based on the fact that their
> > ids start with "match_this".
> > Then I want to assign a onclick-function to the first checkbox that
> > disables all the other ones.
> > Can somebody help me out with how to do this with Prototype?
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