On Tue, Aug 17, 2010 at 1:47 PM, Rhiq <[email protected]> wrote:
> I obviously don't get the way up() works. Using the generated HTML
> below:
>
> <tr class="sd_type ChildOfClass10 ChildOfCat8 open" id="type-18">
[snip]
> </tr>
[snip]
> <tr id="part-47" class="sd_part ChildOfType18 ChildOfClass10
> ChildOfCat8">
[snip]
> </tr>
> If I try the following:
> alert($('part-47').up('tr.sd_type').id) I get an error saying that it
> is undefined.
Yes. the two table rows are siblings. +up+[1] moves up the DOM tree,
so it will find ancestors.
>
> Does it make sense to anyone what I am trying to do? Is there a way
> for me to do what I would like?
Yes. You want +previous+[2] which lets you find the first (previous)
sibling that matches a given selector.
[1] http://api.prototypejs.org/dom/element/up/
[2] http://api.prototypejs.org/dom/element/previous/
--
med vänlig hälsning
David JH
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