[support] Drupal URLs

[Emma Badger]

I have my Drupal installation in a subfolder but don't want to display  
the subfolder in the URL.

For example I want www.example.com/* to redirect to www.example.com/drupal/*

I've achieved this using this .htaccess.

RewriteEngine on
RewriteCond %{HTTP_HOST} ^(www.)?example.com$
RewriteCond %{REQUEST_URI} !^/drupal/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /drupal/$1
RewriteCond %{HTTP_HOST} ^(www.)?example.com$
RewriteRule ^(/)?$ drupal/index.php [L]

How can I make Drupal generate www.example.com URLs rather than www.example.com/drupal?

Any help would be appreciated, thanks.