Parse error: syntax error, unexpected 'else' (T_ELSE), expecting end of file in

<?php
echo "<center>";
{
    ?>
    <script language="JavaScript">
        function check(f)
        {
            if (f.name.value == "")
            {
                alert("请输入注册用户名称！");
                f.name.focus();
                return (false);
            }
            if (f.pass.value == "") {
                alert("去请输入注册用户密码！");
                f.pass.focus();
                return (false);
            }
            if (f.re_pass.value != f.pass.value) {
                alert("重复密码与密码不一致！");
                f.re_pass.focus();
                f.re_pass.select();
                return (false);
            }
            if (f.mail.value == "") {
                alert("请输入注册用户邮箱！");
                f.mail.focus();
                return (false);
            }
        }
    </script>
    <style type="text/css">
        <!--
        tr, td {font-size: 10pt}
        -->
    </style>
    mini商城系统注册程序<p>
    <table border="1" cellspacing="0" cellpadding="1" bordercolordark="#ffffff" bordercolorlight="#0000ff" width="300">
        <form method=post action="<?php $_SERVER["PHP_SELF"]?>" onsubmit="return check(this)">
            <tr>
                <td colspan=2 bgcolor="#ccccff"align="center">注册用户信息</td>
            </tr>
            <tr>
                <td>注册用户名称</td>
                <td><input type=text name="name"></td>
            </tr>
            <tr>
                <td>注册用户密码</td>
                <td><input type=password name="pass" size=21></td>
            </tr>
            <tr>
                <td>确认密码</td>
                <td><input type=password name="re_pass" size=21</td>
            </tr>
            <tr>
                <td>注册用户邮箱</td>
                <td><input type=text name="mail"></td>
            </tr>
            <tr>
                <td colspan=2 align="center"><input type="submit" value="注册"></td>
            </tr>
        </form>
    </table>
<?php
}
 else
{
    @$name=$_POST["name"];
    @$pass=md5($_POST["name"]);
    @$mail=$_POST["mail"];
    $time=date("Y年m月d日");
    include"config.php";
    $sql="SELECT count(*) FROM $my_user WHERE name='$name'";
    $re=mysqli_query($my_conn,$sql) or die(mysql_error());
    $count=mysqli_fetch_row($re);
    if($count[0]>0)
    {
        echo"已经存在同名用户<p>";
        echo"点<a href=reg.php>这里</a>注册新用户&nbsq; 点<a href=login.php>这里</a>登录";
    }
    else
    {
        $sql="INSERT INTO $my_user(name,password,email,reg_date)values('$name','$pass','$mail','$time')";
        $re="mysqli_query(self::$my_conn,$sql)or die(mysql_error())";
        if($re)
        {
            echo"成功注册用户：".$name."<p>";
            echo"点<a href=login.php>这里</a>登录";
        }
    }
}
echo"</center>";
?>