macOS Choosing an RSS Feed - RSS Forum Widget

[PrplPplEater]

I've got a widget started that can read two different forum RSS feeds at once - one for posts, one for news. On the back of the widget, there is a drop-down list of other forums within the community that I'd like to be able to change one of the feeds to the specified forum.

Here is my opensource directory, and a shot of the front and back below.

I've been working with XHTML and CSS for a while, but javascript is rather new to me. Since widgets are somewhat related to Mac applications, I figured this would be the best place to post my question. Forgive me if I'm wrong, this is the first time I've visited these forums.

 

[Doctor Q]

I'm sorry, but I don't understand what your question is.

 

[PrplPplEater]

I can't get the drop-down list on the back to function, mainly because I don't know what to add to the feed reading script to change feeds using the drop-down.