<!DOCTYPE HTML>
<head>
<meta charset="UTF-8">
<title>Html5页面使用javascript验证表单判断输入</title>
<script language="javascript">
function check(){
var pass1=document.getElementbyid("pass1");
var pass2=document.getElementbyid("pass2");
if (pass1.value!=pass2.value){
pass2.setCustomvalidity("密码不一致");
else
pass2.setCustomvalidity("");
}
var email=document.getElementbyid("email");
if (!email.checkValidity())
email.setCustomvalidity("请输入正确的email地址");
}
</script>
</head>
<form id="testForm" onsubmit="return check()">
密码:<input type="password" name="pass1" id="pass1" /><br/>
确认密码:<input type="password" name="pass2" id="pass2" /><br/>
Email:<input type="email" name="email" id="email" /><br/>
<input type="submit" />
</form>
