Formula URL or Formula Text Button that will perform an action, without the need to navigate away from the current dashboard/report/record?

Thanks Coach. The Formula URL button did show it needed an app token, and now the test button works fine (although it shows the XML result and doesn't finish the button, refresh and return to the same report screen).
So while that line was fixed, the next two don't work either. When I click the button nothing happens, so there clearly are issues with the next two lines of code.

Perhaps I need to load the jGrowl first? I don't see that in this thread but I've toyed with other people's code (like the tabbed forms) and used an "onload" field to load the javascript..I"m a newbie and can't really code in javascript, I can just tweak simple stuff from other people sometimes.