How to make a checkbox checked with jQuery? [duplicate]
$('#test').prop('checked', true);
Note only in jQuery 1.6+
$('#test').attr('checked','checked');
$('#test').removeAttr('checked');
$('#checkbox').prop('checked', true);
When you want it unchecked:
$('#checkbox').prop('checked', false);
I think you should use prop(), if you are using jQuery 1.6 onwards.
To check it you should do:
$('#test').prop('checked', true);
to uncheck it:
$('#test').prop('checked', false);