JAVASCRIPT

jquery remove disabled property from button

 $('#edit').click(function(){ // click to
            $('.inputDisabled').attr('disabled',false); // removing disabled in this class
 });

jq html remove disabled

$('.disabledCheckboxes').removeAttr("disabled");

jquery remove disabled property from button

$("#edit").click(function(event){
   event.preventDefault();
   $('.inputDisabled').prop("disabled", false); // Element(s) are now enabled.
});