Perfect, the getElementById method is working perfectly, cheers. Good catch on guessing what I was actually asking for as well, this page will have anything from 1 to a few hundred form rows so an if/else set would have been way to big (which is why I didn't go that route myself).
-- Jay -----Original Message----- From: morgan l [mailto:[EMAIL PROTECTED] Sent: 07 November 2007 17:52 To: CF-Community Subject: Re: JS Question function updateCC(rowNum) { document.prices("cc" + rowNum).value = document.prices("cost" + rowNum).value * 1.2; } But it's widely considered better practice to use document.getElementById() rather than document.formname to reference form fields. To do so, just ad id="" to the fields, and the function would become: function updateCC(rowNum) { document.getElementById("cc" + rowNum).value = document.getElementById("cost" + rowNum).value * 1.2; } On 11/7/07, James Smith <[EMAIL PROTECTED]> wrote: > > Quick question I am sure someone will answer in no time... > > How do I modify the function... > > function updateCC(rowNum) { > document.prices.cc1.value = document.prices.cost1.value * 1.2; > } > > So that if 'rowNum' is 4 then 'cc1' becomes 'cc4' and 'cost1' becomes > 'cost4'. > > -- > Jay > > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.5.503 / Virus Database: 269.15.23/1114 - Release Date: > 06/11/2007 > 20:05 > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Download the latest ColdFusion 8 utilities including Report Builder, plug-ins for Eclipse and Dreamweaver updates. http;//www.adobe.com/cfusion/entitlement/index.cfm?e=labs%5adobecf8%5Fbeta Archive: http://www.houseoffusion.com/groups/CF-Community/message.cfm/messageid:246043 Subscription: http://www.houseoffusion.com/groups/CF-Community/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.5
