checkUserNameflag=false;

 checkPasswordflag=false;

 checkPasswordAgianflag=false;

 checkEmailflag=false;

// 用户名校验

function checkUserName() {

    var username = $("userNeme").value;

    var zz = /^[A-Za-z0-9]{6,}$/;

    if (!zz.test(username)) {

        $("userName_warn").innerHTML = "  × 用户名不符合规范";

        checkUserNameflag=false;

    } else {

        /*$("userName_warn").style.color='blue';

        $("userName_warn").innerHTML = "√ 用户名可用";*/

        showUserExist(username);

        checkUserNameflag=true;

    }

}

//重置提示

function resetWarn(){

    $("userName_warn").innerHTML="";

    $("email_warn").innerHTML="";

    $("password_warn").innerHTML="";

    $("Repassword_warn").innerHTML="";

}

// 密码校验

function checkPassword() {

    var password1 = $("password").value;

    if (password1.length >= 6 && password1.length <= 15) {

        checkPasswordflag = true;

        $("password_warn").style.color='blue';

        $("password_warn").innerHTML = "  √ 密码可用 ";

        checkAgianMiMa();

    } else {

        checkPasswordflag = false;

        $("password_warn").innerHTML = "  × 密码至少为 6 个字符 ";

    }

}

function checkPasswordAgian() {

    var password1 = $("password").value;

    var password2 = $("rePassword").value;

    if (password1 == password2) {

        if (password1 == "") {

            $("Repassword_warn").innerHTML = "  × 请输入密码 ";

            checkPasswordAgianflag = false;

            return;

        }

        $("Repassword_warn").style.color='blue';

        $("Repassword_warn").innerHTML = "√ 重复输入密码正确";

        checkPasswordAgianflag = true;

    } else {

        checkPasswordAgianflag = false;

        $("Repassword_warn").innerHTML = "  × 两次密码输入不同 ";

    }

}

function checkEmail(){

    //对电子邮件的验证

      var myreg = /^([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/;

      var email=$("email").value;

      if(!myreg.test(email)){

            checkEmailflag=false;

              $("email_warn").style.color='red';

            $("email_warn").innerHTML = "  × 邮箱格式不符合规范";

        } else {

            checkEmailflag=true;

            $("email_warn").style.color='blue';

            $("email_warn").innerHTML = "√ 邮箱格式正确";

        }

}

function submitCheck(){

    alert(checkUserNameflag);

    if(checkUserNameflag==false || checkPasswordflag==false || checkPasswordflag==false

            ||checkPasswordAgianflag==false || checkEmailflag==false){

        return;

    }

}

function $(id){

    return document.getElementById(id);

}