Php test login thing...

[Pino]

<?php
$user="";
$pass="";
$database="phpdb";

$username=$_POST['username'];
$password=$_POST['password'];

mysql_connect('localhost',$user,$pass);
@mysql_select_db($database) or die ("error selecting DB");

if($username == "admin")
{
   if($password == "test")
   {
   echo "Admin Login";
   }
   else
   {
   echo "Error Incorrect Admin Password";
   }
}
else
{

     $query="SELECT password FROM clients WHERE username='$username'";
     $result=mysql_query($query) or die (mysql_error());

     if ($result==$password)
        {
        echo "Welcome";
        }
      else
        {
        echo "Error";
        }
}
mysql_close();
?>

this doesnt work, it works if the admin logs in i think its the way i am handling the $result could any help me fix it up?

thank you