I have been asked to disable the \"ticking\" of a checkbox. I am not being asked to disable the checkbox, but to simply disable the \"ticking\".
In other w
With CSS, you can change the image of the checkbox. See http://ryanfait.com/resources/custom-checkboxes-and-radio-buttons/ and also CSS Styling Checkboxes .
I would disable the checkbox, but replace it with an image of a working checkbox. That way the checkbox doesn't look disabled, but won't be clickable.