use:
if( $(this).prev()[0] )
or
if( $(this).prev().length )
or
if( !$(this).is('first-child') )
--
Ariel Flesler
http://flesler.blogspot.com
On 11 jun, 11:58, "warren.wessels" <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I've just started using JQuery, and had a quick question that I don't
> seem to be able to answer by reading the 1.2 API documentation.
>
> I have a DOM snippet like:
>
> <ul>
> <li>something</li>
> <li>another thing</li>
> <li>a third</li>
> <li>a final thing</li>
> </ul>
>
> And on mouseover, using the $("li").mouseover event, I am adding a
> class to the li using $(this).addClass(...). However, I don't want to
> add the class if the li under the mouse is the first li in the ul...
> The predicate:
>
> if( $(this).prev() ) { ... }
>
> doesn't seem to work as I'd expect (i.e. if this has a previous
> sibling), and neither does
>
> if( $(this).is("ul li:first") ) { ... }
> or
> if( $(this).is("ul li:eq(0)") ) { ... }
> or
> if( $(this).is($(this).parent().children()[0] ) { ... }
>
> Can anyone give me some pointers on how to "detect" that the element
> selected is in a certain position in the sibling chain?
>
> Thank you!
>
> Warren
