If this is how you disable an element with jQuery, how do you re-enable it?

How do you re-enable an element after disabling it开发者_如何学运维 this way?

$("#foo").attr("disabled", "disabled");

Assuming you're using a recent version of jQuery (1.6+), a more appropriate way of toggling the disabled attribute is using .prop():

$("#foo").prop("disabled", true);
$("#foo").prop("disabled", false);

See jQuery API documentation for .prop() for an explanation.

This should do it:

$('#foo').removeAttr('disabled');

and this as well:

$('#foo').attr('disabled', '');

$('#foo').removeAttr('disabled');

OR you can set attr to ""

$('#foo').attr('disabled', '');