Toggle Checkboxes with Conditional Criteria

[Stephanie25311838bqgv]

Hello,

I have previously been successful with setting up a toggle between 2 checkboxes. I am attempting to do something similar, only with one side of the toggle being a list of checkboxes.

Checkboxes 1-12 list items wherein multiple selections can be made. Checkbox 13 indicates that no items 1-12 are applicable. I am hoping to set it up so that if one or more selections are ticked 1-12, then checkbox 13 is unticked. Also, if multiped items are ticked 1-12 and the end user  unticks only one item while the others remain ticked, that checkbox 13 will only toggle on if all items 1-12 are unticked. 

Is there a conditional formula or javascript that will say, for example,  to check box 13 if checkbox 1 is unticked and checkboxes 2-12 are unticked?

I hope I explained that well enough. Thank you for your help!

[try67]

Do you want the user to be able to tick (or untick) box 13 manually, or should it only be determined by the state of the other fields?

[Stephanie25311838bqgv]

I would like it to be determined by the state of the other fields. 

Thank you

[Nesa Nurani]

If I understand you right you can use this in a text field (can be hidden) as custom calculation script, if any or multiple checkboxes 1-12 are ticked it will set checkbox 13 to read-only and if checkbox 13 is ticked it will set checkboxes 1-12 to read-only:

var n = 0;
for( var i=1; i<=12; i++){
if(this.getField("Checkbox "+i).valueAsString != "Off")n++;
if (n != 0)
this.getField("Checkbox 13").readonly = true;
else
this.getField("Checkbox 13").readonly = false;
if(this.getField("Checkbox 13").valueAsString != "Off")
this.getField("Checkbox "+i).readonly = true;
else
this.getField("Checkbox "+i).readonly = false;}