How to determine if a form element is disabled or enabled
Using the jQuery form filter expressions :disabled or :enabled, it is rather easy to select and
determine (Boolean value) if a form element is disabled or enabled. Examine the code below for
clarification.
Sample: sample53.html
Selecting/clearing a single check box or radio button
You can select a radio button input or check box by setting its checked attribute to true using
the attr().
Sample: sample54.html
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