function checkAll(objList, value) {
	if (objList) {
		if (objList.length) {
			for (var i = 0; i < objList.length; i++) {
				if (!objList[i].disabled) {
					objList[i].checked = value;
				}
			}
		} else objList.checked = value;
	} else alert('objList is null');
}