Hi,

Again, it's WELL WORTH your time to take an hour and read through the
API[1]. It will save you quite a lot of time in the long term
(probably even the medium term).

You can get this from previousSiblings.[2] Given an element `element`,
`element.previousSiblings().length` will tell you how many precede it
-- e.g., will give you its index.

[1] http://api.prototypejs.org
[2] http://api.prototypejs.org/dom/element/previoussiblings/

HTH,
--
T.J. Crowder
Independent Software Consultant
tj / crowder software / com
www.crowdersoftware.com


On May 12, 6:16 am, Phonethics <phoneth...@gmail.com> wrote:
> Is there a way to know the index of the element relative to the parent
> as in jQuery ?
>
> document.observe("dom:loaded", function()
> {
>     $$('#block1 > a').invoke('observe','click',function(e)
>     {
>         alert($(this).index()); // If Click 3 is clicked, it should
> alert 3
>     });
>
> });
>
> <div id="block1">
> <a href="#">Click 1</a>
> <a href="#">Click 2</a>
> <a href="#">Click 3</a>
> <a href="#">Click 4</a>
> <a href="#">Click 5</a>
> </div>
>
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