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?
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "Ruby
on Rails: Spinoffs" group.
To post to this group, send email to rubyonrails-spinoffs@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/rubyonrails-spinoffs?hl=en
-~----------~----~----~----~------~----~------~--~---
