function checkinfo() {


    if (document.aspnetForm.txtUserName.value == "") {
        alert("请输入姓名");
        document.aspnetForm.txtUserName.select();
        return false;
    }

    if (document.aspnetForm.txtPwd.value == "") {
        alert("请输入密码");
        document.aspnetForm.txtPwd.select();
        return false;
    }

    if (document.aspnetForm.txtPwd.value != document.aspnetForm.txtPwd_ok.value) {
        alert("请输入确认密码不对");
        document.aspnetForm.txtPwd_ok.select(); 
        return false;
    }

    if (!checkMail())
        return false;

if (document.aspnetForm.txtEmail.value != document.aspnetForm.txtEmail_ok.value) {
        alert("请输入确认mail不对");
        document.aspnetForm.txtEmail_ok.select(); 
        return false;
    }
}




//检查Email
function checkMail() {

    if (document.aspnetForm.txtEmail.value == "") {
        alert("请正确输入mail地址！");
        document.aspnetForm.txtEmail.select();
        return false;
    }
    var emailPat = /^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;

    if (!emailPat.exec(document.aspnetForm.txtEmail.value)) {
        alert("请正确输入mail地址！");
        document.aspnetForm.txtEmail.select();
        return false;
    }
    return true;

}


//校对Email
function checkMail_OK() {
    if (document.aspnetForm.txtEmail.value != document.aspnetForm.txtEmail_ok.value) {
        alert("两次输入的mail地址不一样！");
        return false;
    }
    return true;
   
}