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Switch / Flag State Change Detection

I need to reliably detect the change in state of the radio buttons / checkboxes on my page in order to see if the form has been changed or not. Now this is a completely separate script, I can not change anything that controls the form.

Now I see only two ways to do this:

  • onchange an event handler that helps with text fields, text fields and selections, but does not start for checkboxes / radio buttons
  • onclick an event handler that is not reliable because users often use hotkeys to change the values ​​of these elements.

What am I missing here? Is there a way to reliably detect that the checkbox is checked or not checked?

UPDATE: As you guys pointed out that the change event is actually triggered on checkboxes / radio buttons, even though w3schools says it is only for text inputs

However, my problem turned out to be that the values ​​of the flags / radio objects are set using setAttribute in the scripts, in which case the event does not fire.

Is there anything I can do in this case?

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2 answers

See: http://www.quirksmode.org/dom/events/change.html .

It says that all major browsers support the change event, but the IE implementation is wrong.

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