^\d+\.\d+$ I'm assuming you want digits before and after the decimal.
--Ben Doom Ian Skinner wrote: > Any suggestions on how one would determine that input contains only > numbers and no more then one decimal '.' character. > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;160198600;22374440;w Archive: http://www.houseoffusion.com/groups/RegEx/message.cfm/messageid:1109 Subscription: http://www.houseoffusion.com/groups/RegEx/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.21
