Hi, Toby, You could use a JavaScript framework like jQuery to do the calculations.
In fact, Ray Camden just recently had a blog post about how to use jQuery to solve a very similar problem: http://www.coldfusionjedi.com/index.cfm/2008/9/10/Ask-a-Jedi-Dynamically-updating-line-items-on-a-form --Brian ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:312753 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
