set all radiobox values at once

I am a complete noob to scripting but understand that it must be possible to set all radioboxes to one value at once

detailed:
14 radioboxes exist on my form
users have to check Yes or No
I would like to have a button on my form which sets all the (14) radioboxes to the (N) no value, default value is (Y) Yes

Thanks in advance for your help

Koen

Hi Koen,

Please post a link to the form so I can take a quick look. It's much easier to show you an example using the input names from your form that to make something up from scratch.

Bob

http://www.swekplanning.nl/planning
sent you a login in pm