PHP MySQL สอบถามเกี่ยวกับการ Login เข้าสู่ระบบคับ รายละเอียดข้างในคับ

<form id="form1" method="post" action="check_login.php">
      <label>
      <strong><font face="MS Sans Serif" size="2">Username:</strong>
      <input type="text" name="member_id" id="member_id" />
    </label>
      <p>
        <label>
          <strong><font face="MS Sans Serif" size="2">Password:</strong>
          <input type="password" name="member_password" id="member_password" />
        </label>
      </p>
      <p>
        <label>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        <input type="submit" name="button" id="button" value="Submit" />
        </label>
        <a href="register.php">สมัครสมาชิก</a></p>
    </form>

<?
	session_start();
	mysql_connect("localhost","root","root");
	mysql_select_db("dormitory");
	$strSQL = "SELECT * FROM member WHERE member_id = '".trim($_POST['member_id'])."' 
	and Password = '".trim($_POST['member_password'])."'";
	$objQuery = mysql_query($strSQL);
	
	if(!$objResult)
	{
			echo "Username and Password Incorrect!";
	}
	else
	{
			$_SESSION["member_id"] = $objResult["member_id"];
			$_SESSION["Status"] = $objResult["Status"];

			session_write_close();
			
			if($objResult["Status"] == "Admin")
			{
				header("location:adming.php");
			}
			else
			{
				header("location:user_page.php");
			}
	}
	mysql_close();
?>