Enabling disabled fields before submit with JQuery

Enabling disabled fields

$('#my_form').submit(function(){
    $("#my_form :disabled").removeAttr('disabled');
});

Enabling and Disabling a html input button

Using Javascript

Disabling a html button

document.getElementById("Button").disabled = true;

Enabling a html button

document.getElementById("Button").disabled = false;

Using jQuery

All versions of jQuery prior to 1.6

Disabling a html button

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

Enabling a html button

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

All versions of jQuery after 1.6

Disabling a html button

$('#Button').prop('disabled', true);

Enabling a html button

$('#Button').prop('disabled', false);