var checkNowType = function(doing, status) {
obj1 = getObj(doing);
remain = 123 - obj1.value.length;
obj2 = getObj(status);
if (obj1.value.length <= 122) {
obj2.innerHTML = '<span class="tip"><small>还可以输入' + remain + ' 字</small></span>';
} else {
remain2 = obj1.value.length - 123;
obj2.innerHTML = '<small class="fade">还可以输入0 字</small>';
obj1.value = obj1.value.substring(0, 123);
}
}