> Your example use xpath ? No, it uses a CSS 3 attribute selector.
http://www.w3.org/TR/css3-selectors/#attribute-selectors > How jquery know what id forum-list- has ? It doesn't. The selector matches a substring of the id, e.g. it will match "forum-list-0", "forum-list-1", ... but it would also match "forum-list-foo". > Your method is faster than Karl Rudd example? Internally jQuery has to loop over all items in the result, so there won't be much of a difference. But matching elements by id like in Karl's example may be a bit faster than using a type and attribute selector. --Klaus