function user_login ($username1, $password1) {
//echo $username , $password;
$host="localhost"; // Host name
$username="root"; // Mysql username
$password="831004"; // Mysql password
$db_name="dp"; // Database name

// Connect to server and select database.
$con = mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name",$con)or die("cannot select DB");

 $query = "select * FROM profile WHERE
      username = '{$username1}' AND
      password = '{$password1}'";

  $result = mysql_query($query,$con);
  $count = mysql_num_rows($result);

  if ($count==1)
  $isValidUser = TRUE;

  //echo $isValidUser;
  return ($isValidUser);