Adding MeeboMe Widget to the library catalog

David Lee King wrote about adding the MeeboMe Widget to his library's catalog.  It shows up whenever there is an unsuccessful keyword search.  This way your users have on-screen access to live help from library staff when and where they often need it--while using our confusing and multi-layered catalogs.  For the sake of argument, let's assume that your library's catalog is perfectly functional and easy to use.  Even then, in this imaginary case, adding a MeeboMe Widget is important.  Why?  Library catalogs are our single biggest point of contact with our users.  They get used much more than our library websites, which is where most libraries have placed their MeeboMe Widgets (which is also good, just not the biggest point of potential contact).