I've seen different variations of this idea around for a while but haven't used them myself. Regardless, given the way that thread views are generated, I wouldn't expect that this would be an overly difficult mod to develop. If this is something that you would be interested in developing for your site drop me an email and we can discuss further.

Thanks

Mark

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Mark Ferguson
President - Drive Thru Online, Inc.
Drive Thru Online – Helping Turn Your Passion into Profit