mysql_connect("localhost",$dbuser,$dbpass);
                            mysql_select_db("registerform");
                            $sql2=mysql_query("select username,pass from login where username = '$user' and pass ='$pass'");
                            $row=mysql_fetch_array(($sql2));
                            if ($row['username']==$user && $row['pass']==$pass) {
                                # code...
                            echo "Login Successful!!Welcome ".$row['username'];
                            }else{
                                echo "Fail to login".$sql2;
                            }