HTTP-Referrer spoofing

Nothing dodgy going on here, but I'm currently designing a new site which uses the Google maps API. When you sign up for an API key, it registers to a web address that you specify, but I'm not ready to upload this yet but Google API wont let me see the fruits of my labour unless the request comes from the domain that is registered to the key.
So, is it possible (in php or javascript) to spoof the domain name that is passed onto Google so the API thinks it's fine and will show me the map working?

register the key under http://localhost.

No good, because I then need to change the key when it's uploaded to the web, and since I won't be around to do that I need another option...

http://groups.google.com/group/Google-Maps-API/brows...

If you switch to APIv2, then the API key checking is switched off when
you preview your page. You can just double-click on your html file to
test it.

Use &v=2 in the line that loads the API.

what sort of site are you making out of interest?

It's the website for the school I work for.

I've managed to get it working now, turns out google allows it to work from http://localhost, but not virtual hosts. So a quick change of url has allowed it to work, unfortunately browsing to http:/.localhost screws up my relative links and includes, so I now need to mess around with htaccess to get it to work fully

Thanks for giving information.