# Live Adding Numbers

**URL:** https://forum.kirupa.com/t/live-adding-numbers/70011
**Category:** web dev
**Created:** [November 9, 2004, 11:15pm UTC](https://forum.kirupa.com/t/live-adding-numbers/70011 "2004-11-09T23:15:46Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![dreamerp](https://avatars.discourse-cdn.com/v4/letter/d/fbc32d/32.png) [@dreamerp](https://forum.kirupa.com/u/dreamerp)
#### Post date: [November 9, 2004, 11:15pm UTC](https://forum.kirupa.com/t/live-adding-numbers/70011/1 "2004-11-09T23:15:46Z")

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I was wondering if it is possible to have a live “addition” of items. If I had radio buttons that you could select and add $5.00 it would add the cost to the top, and keep adding, or taking away etc. How would I do this? Also, I would not want the value of the radio field as $5.00 because in the checkout I am using PHP and will be calling the values. So is it possible to us onSelect, or something like this? HELP ME!