Question

below is how i disable all submit button on click

$('form').submit(function(){
    // On submit disable its submit button
    $('input[type=submit]', this).attr('disabled', 'disabled');
});

how to disable all selectbox onchange easily for all selectbox in the page

Answer 1

Something like this will disable all select boxes:

$('select').attr('disabled', 'disabled');

To tie it to a form submission you can add it to your existing function.

To bind this to a select box’s onChange event you can use jQuery’s change listener. So if you want all select boxes disabled when any select box changes you can use this:

$('select').change(function(){
    $('select').attr('disabled', 'disabled');
});

If you want to operate on a specific select box you can change the first $('select') above to reference that box.