Web Parts sharing images/javascript files etc

I'm developing a few web parts and I have a Sharepoint site with 2 sub-sites:

hxxp://sharepointserver/sites/portal1

hxxp://sharepointserver/sites/portal2

(hxxp to get around the spam filter)

In the local file system, the site is created in:

C:\Inetpub\wwwroot\wss\8080\

There are a few images, a couple of javascript files and a css file that get installed in (stsadm -globalinstall):

C:\Inetpub\wwwroot\wss\8080\wpresources\mywebparts\

Now the problem is when I use the ClassResourcePath property from a web part, depending on what site the web part has been added to, the url is (for example):

hxxp://sharepointserver/sites/portal[1|2]/wpresour开发者_开发问答ces/mywebparts/mywebparts.css

This fails as the file url should be:

hxxp://sharepointserver/wpresources/mywebparts/mywebparts.css

It feels like I am using the ClassResourcePath incorrectly, but I'm not sure what other options there are to share common files between web parts?

Thanks

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There are some options:

1. You can put the common files in the _layouts directory. If you are using MOSS 2007 you can use solution deployment to automate this. http://msdn.microsoft.com/en-us/magazine/cc163379.aspx

2. You can embed your resources in the assembly itself. And then access it: http://support.microsoft.com/kb/319292