//清空input标签中默认的value值
function func(){
document.getElementById("user").value="";
}
//当光标从Input标签文本框中失去之后，需要触发的事件处理的方案。
function checkuser(){
//定义标记只要用户不合法，都不让通过
var flag = false;
//获取当前的user这个input标签对象
var user = document.getElementById("user").value;
//获取用户显示用户名信息的span标签
var userspan = document.getElementById("userspan");
//验证用户名是否合法
if(user == ""){
userspan.innerHTML = "用户名错误".fontcolor('red');
}else{
userspan.innerHTML = "用户名正确".fontcolor('green');
flag = true;
}
return flag;
}
//验证用户的输入密码
function checkpwd(){
var flag = false;
//获取用户输入的密码值
var pwd = document.getElementById("pwd").value;
var pwdspan = document.getElementById("pwdspan");
if( pwd == "" ){
pwdspan.innerHTML = "密码不能为空".fontcolor("red");
}else{
pwdspan.innerHTML = "密码正确".fontcolor("yellow");
flag = true;
}
return flag;
}
//验证确认密码
function checkrepwd(){
var flag = false;
//获取用户输入的密码值
var pwd = document.getElementById("pwd").value;
var repwd = document.getElementById("repwd").value;
var repwdspan = document.getElementById("repwdspan");
if(pwd == repwd){
repwdspan.innerHTML = "密码一致".fontcolor("blue");
flag = true;
}else{
repwdspan.innerHTML = "密码不一致".fontcolor("red");
}
return flag;
}
//验证性别
function checksex(){
var sexs = document.getElementsByName("sex");
//定义计数器，统计单选按钮选中了几个
var count = 0;
for(var i=0;i<sexs.length;i++){
if( sexs[i].checked ){
count ++;
}
}
//判断count是否为1
if( count != 1 ){
document.getElementById("sexspan").innerHTML = "请选择性别".fontcolor('red');
}
}
//验证复选框
function checkhobby(){
//获取所有的name为hobby的checkbox复选框
var hobbys = document.getElementsByName("hobby");
var count = 0;
for(var i=0;i<hobbys.length;i++){
if( hobbys[i].checked ){
count++;
break;
}
}
if(count == 0){
document.getElementById("hspan").innerHTML = "爱好必须选择一项".fontcolor('red');
}
}
function check(){
if( checkuser() && checkpwd() && checkrepwd() ){
return true;
}
return false;
}