jquery set checkbox value on checked code example
Example 1: jquery set checkbox checked
//jQuery 1.6+ use
$('.checkbox').prop('checked', true);
//jQuery 1.5.x and below use
$('.checkbox').attr('checked', true);
Example 2: Setting “checked” for a checkbox with jQuery
$('.myCheckbox').prop('checked', true);
$('.myCheckbox').prop('checked', false);