Error when trying to connect to db locally - menu.php

Hi,
I keep receiving these error message when trying to view any page locally. I only see the top part of the logo and one menu item.

* Notice: Undefined variable: database_localhost in /Users/kate/Sites/Powerstore/CSSMenuWriter/cssmw_home/menu.php on line 58

Notice: Undefined variable: localhost in /Users/kate/Sites/Powerstore/CSSMenuWriter/cssmw_home/menu.php on line 58

Warning: mysql_select_db(): supplied argument is not a valid MySQL-Link resource in /Users/kate/Sites/Powerstore/CSSMenuWriter/cssmw_home/menu.php on line 58

Notice: Undefined variable: localhost in /Users/kate/Sites/Powerstore/CSSMenuWriter/cssmw_home/menu.php on line 60

Warning: mysql_query(): supplied argument is not a valid MySQL-Link resource in /Users/kate/Sites/Powerstore/CSSMenuWriter/cssmw_home/menu.php on line 60

My localhost.php:
<?php
# FileName="Connection_php_mysql.htm"
# Type="MYSQL"
# HTTP="true"
$hostname_localhost = "localhost";
$database_localhost = "powerstore";
$username_localhost = "root";
$password_localhost = "****";
$localhost = mysql_pconnect($hostname_localhost, $username_localhost, $password_localhost) or trigger_error(mysql_error(),E_USER_ERROR);
?>

Thanks in advance for any help. Kate

Can you post the code form CSSMenuWriter/cssmw_home/menu.php at lines 58 and 60 where the error is occurring?

love to. here is the code from line 58-60:
mysql_select_db($database_localhost, $localhost);
$query_menuwriter_productcategories = "SELECT CategoryName, CategoryID FROM productcategories";
$menuwriter_productcategories = mysql_query($query_menuwriter_productcategories, $localhost) or die(mysql_error());

Is the following code at the top of any page that has a menu?:
<?php require_once('Connections/localhost.php'); ?>

yes it is. it's the second line in each file. thanks.

I have created a tech support ticket for this. To view and edit your ticket, please log into your support history:
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This issue was caused by some Dreamweaver settings and site settings. The site needs to be defined with document relative as opposed to root relative.