Spry Data needs to popluate 2 widgets on the fly

Question

I have thrown together two spry widgets that should populate
with XML data based on what is selected from a form control.
-Based on what is selected from the from control, the tabbed
menu should update it's tabs and content.
-In the tabbed menu content I have put a horizontal menu bar.
-The tab selected should load an xml file with the menu bar
data.
-I am only fetching two xml files at a time. The first xml
data loaded contains the selection categories with the
corresponding tab headings as child elements.
-Each xml tab element contains a url path to the
corresponding xml file containing the menu data. - this is to keep
from having to load a large file, but the data could be
consolidated into one file if needed. *this used to be the case,
all data in one file. I had about five or so Nested datasets, but
it didn't work, the menu bar submenus wouldn't update.
I've been struggling with this for a while and have tried so
many ways to get the data to load properly.
I've gone in so many circles trying to add observers and
url/xpath updater's and come very close, but have not been
successful. Adding an observer to the datasets will get some to of
the data to concatenate but not at every step.
I have stripped down the code to the basis from where i
started, meaning not much works. The form select, tabbed menu, and
menu bar are set up exactly like the samples.
links to all the files:
HTML file -
http://mimayes.com/nav/globalnav.html
XML1 Categories and Tabs -
http://mimayes.com/nav/globalnav.xml
XML 2 Menu Data should load on tab selection -
http://mimayes.com/nav/menu.xml
I hope someone out there is able to help me please! I may be
in over my head on this, but Spry is too cool.

Answer 1

Use combine Similar Request by combining 5 requests
In the first Request, in the column 1's fx, give the case statement as case when column 1 in(A,E) then 'A'  end
and Rename the column 1 to Category
Put the filter as Category is in or equal to A
In the 2nd Request in the column 1's fx give the case statement as case when column 1 in(B,E) then 'B'  end
and Rename the column 1 to Category
Put the filter as Category is in or equal to B
Similarly for C, D
For E No need of changing the column 1's fx
just put the filter as Column 1 is in or equal to 'E'
Hope this solves...