I've coded a plugin for that: http://ff6600.org/j/jquery.childOf.js
You can also do this, but it's much slower: var a = $(a), b = $(b); b.parents().filter(function(){ return this == a[0]; }).length cheers, - ricardo On Jan 22, 7:25 am, "James Hughes" <j.hug...@kainos.com> wrote: > Hi, > > This is probably a really easy question an I apologise if it appear stupid > but I am clueless right now. Given 2 jQuery objects (a,b) how can I tell if > b is a child of a? > > James > > -------------------------------------------------------------------- > This e-mail is intended solely for the addressee and is strictly > confidential; if you are not the addressee please destroy the message and all > copies. Any opinion or information contained in this email or its attachments > that does not relate to the business of Kainos > is personal to the sender and is not given by or endorsed by Kainos. Kainos > is the trading name of Kainos Software Limited, registered in Northern > Ireland under company number: NI19370, having its registered offices at: > Kainos House, 4-6 Upper Crescent, Belfast, BT7 1NT, > Northern Ireland. Registered in the UK for VAT under number: 454598802 and > registered in Ireland for VAT under number: 9950340E. This email has been > scanned for all known viruses by MessageLabs but is not guaranteed to be > virus free; further terms and conditions may be > found on our website -www.kainos.com