Hello,

I am having a problem with some checkboxs

what I have is a page with 17 checkboxs.

as per below:

[1] [2] [3]
[4] [5] [6]
[7] [8] [9]
[10] [11] [12]

[13]
[14]
[15]
[16]
[17]

The problem I have is..

A user can only select one check box on the left (1,4,7,10,13,14,15,16,17).

If a user selects any other checkbox then the ones on the left need to be unchecked.

A user can select 2,3 together 5,6 together 8,9 together, 11,12 together. (or only select one of them)

However, you can't select 2,5 together etc. (needs to be in the same line)

I need to be able to untick a box if the user wants to untick it.

Anyone able to help?