A form control in initially disabled fieldset: PASS control1.willValidate is false Then, enables the fieldset: PASS document.getElementById("f1").disabled = false; control1.willValidate is true A form control in initially enabled fieldset: PASS control2.willValidate is true Then, disables fieldset: PASS fieldset2.disabled = true; control2.willValidate is false Detach the form control from the fieldset: PASS fieldset2.removeChild(control2); control2.willValidate is true PASS successfullyParsed is true TEST COMPLETE PASS successfullyParsed is true TEST COMPLETE