function check_login_info($username, $password)
	{
		$user_exists = false;
		$dbcon = db_connect();
		$selected = mysql_select_db("users", $dbcon);
		$userresult = mysql_query("SELECT username FROM users");
                #################
		while ($userrow = mysql_fetch_array($userresult, MYSQL_ASSOC))
		{
			if ($userrow['username'] == $username)
				$user_exists = true;
		}
		if (!$user_exists)
		{
			die ("That user doesn't exist.");
		}
		$result = mysql_query("SELECT password FROM users WHERE username='".$username."'", $dbcon);
		$row = mysql_fetch_array($result, MYSQL_ASSOC);
		if (md5($password) == md5($row['password']))
		{
			return login_user();
		} else {
			return false;
		}
		mysql_free_result($result);
		mysql_close($dbcon);
	}