check.js

学生管理系统

//全表校验
function submitFunc(){
	with(document.addOneForm){	
				
		checkSex();
		checkHobby();
		
				
		if(studentId.value == ""){
			alert("学号不允许为空！");
			studentId.focus();
		}
		else if(isNaN(studentId.value)){
			alert("学号必须是数字！");
			studentId.focus();
		}
		else if(studentId.value.length != 8){
			alert("学号必须是8位数字！");
			studentId.focus();
		}
		else if(studentName.value == ""){
			alert("姓名不允许为空！");
			studentName.focus();
		}else if(studentAge.value == ""){
			alert("年龄不允许为空！");
			studentAge.focus();
		}
		else if(isNaN(studentAge.value)){
			alert("年龄必须是数字！");
			studentAge.focus();
		}
		else if(studentAge.value.length != 2){
			alert("年龄必须是2位数字！");
			studentAge.focus();
		}
		else if(sexNull != true){
			alert("性别不允许为空!");
		}
		else if(degreeId.value == ""){
			alert("学历不允许为空！");
			degreeId.focus();
		}else if(Numbers <2){
				alert("爱好请选择2个以上！");
		}
		else{
			//action = '/stu/StudentAdd';
			submit();
		}
	}
}

//性别校验
function checkSex() {
	sexNull = false;
	var sexes = document.getElementsByName("studentSex");
	for(i = 0; i < sexes.length; i++) {
		if(sexes[i].checked) {
			sexNull = true;
			break;
		}
	}
	return sexNull;
}

//爱好校验
function checkHobby(){
	Numbers = 0;
		var hobbys = document.getElementsByName("hobby");
		for(i=0 ; i < hobbys.length ; i++){
			if(hobbys[i].checked){
				Numbers ++;
			}
		}
}