ทำการ login ด้วย php+mssql ไม่ได้คะ กำหนดไม่เป็นไปตามเงื่อนไขที่ if ไว้เลยคะ

<?php
	session_start();
	include("include/config.php");
	echo $_POST[uname];
	echo $_POST[upass];
	
	$strSQL = "SELECT * FROM member WHERE username = '".trim($_POST['uname'])."' 
	and password = '".trim($_POST['upass'])."'";
	$objQuery = mssql_query($strSQL);
	$objResult = mssql_fetch_array($objQuery);
	$num = mssql_num_rows($objQuery);
	if(mssql_num_rows($objQuery)>=1)
	{
		if(!$objResult)
		{
				echo "Username and Password Incorrect!";
		}
		else
		{
				$_SESSION["UserID"] = $objResult["cust_id"];
				$_SESSION["Status"] = $objResult["memtype_id"];
				session_write_close();
				
				if($objResult["memtype_id"] = "1")
				{
					?>
					<script type="text/javascript">
						window.location="adm_index.php";
					</script>
					<?
				}
				elseif ($objResult["memtype_id"] = "2")
				{
					?>
					
					<script type="text/javascript">
						window.location="emp_index.php";
					</script>
					<?
				}
				else
				{
					?>
					<script type="text/javascript">
						window.location="index.php";
					</script>
					<?
				}
		}
	}
	else
	{
		?>
        <script type="text/javascript">
            window.location="index.php";
        </script>
        <?
	}
	
?>

$objResult["memtype_id"] = "1"

$objResult["memtype_id"] =  1