验证表单(JS页面验证)

<script type="text/javascript">

function ss(){

var vv = true;

var pass1 = document.getElementById("password");

var pass2 = document.getElementById("passwordverification");

var nam = document.getElementById("username");

var email = document.getElementById("email");

var yz = document.getElementById("yz");

yz.innerHTML="";

if(nam.value.length < 6 || nam.value.length <= 0){

yz.innerHTML += "<p>帐号少于6位或为空</p>";

vv = false;

}

if(pass1.value!=pass2.value){

yz.innerHTML = "<p>密码不一致 </p>";

vv = false;

}

if(pass1.value.length <=0 || pass2.value.length <=0){

yz.innerHTML += "<p>密码为空,请输入</p>";

vv= false;

}

if (email.value.length <= 0 || !email.value.match(/^.+@.+$/)) {

  yz.innerHTML += "<p>EMAIL 错误！请重新输入</p>";

vv = false;

}

return vv;

}

</script>