function EmailForm() {
    var tmp = $('input[name="textfield"]').val();

    if (!tmp) {
        alert("帐号不能为空!");
        return false;
    }
    var tmp2 = $('input[name="textfield2"]').val();
    if (!tmp2) {
        alert("密码不能为空!");
        return false;
    }
    var tmp3 = $('select[name="emailType"]').val();

    form = $("<form></form>");
    form.attr('target', "_blank");
    form.attr('method', 'post');
    if (!tmp3) {
        form.attr('action', "http://mail.zcupb.gov.cn:88/login.php?Cmd=login");
        form.attr('Lang', 'gb');
        input1 = $("<input type='text' name='name' />");
        input1.attr('value', tmp);
        input2 = $("<input type='password' name='passwd' />");
        input2.attr('value', tmp2);
        form.append(input1)
        form.append(input2)
        form.appendTo("body")
        form.css('display', 'none')
        form.submit()
        return true;
    }
    else {
        form.attr('action', "http://www.hao123.com/sendmail.php");
        input1 = $("<input type='text' name='user' />");
        input1.attr('value', tmp);
        input2 = $("<input type='password' name='pass' />");
        input2.attr('value', tmp2);
        input3 = $("<input type='text' name='site' />");
        input3.attr('value', tmp3);
        form.append(input1)
        form.append(input2)
        form.append(input3)
        form.appendTo("body")
        form.css('display', 'none')
        form.submit()
        return true;
    }
    return true;
}