[AS CS5] Get document's default fill color

Question

Anyone know how to do this?
What I am trying to do is manually select a color using the color picker, then the script redefines and existing swatch with the same color value.
I tried:
set myNewColor to fill color of page item default
without success...

Answer 1

I had tried that, but it didn't work either. I think that's because I was using the line in a tell myDocument block, not tell application. It still isn't working, though.
Here is the script:
tell application "Adobe InDesign CS5"
     set myDocument to active document
     set myNewColor to fill color of page item defaults
     set mySpace to space of myNewColor
     set myValue to color value of myNewColor
     tell myDocument
          tell color "Color1"
               set space to mySpace
               set color value to myValue
          end tell
     end tell
end tell
Here is the error:
error "Adobe InDesign CS5 got an error: Can’t get space of swatch id 3." number -1728 from space of swatch id 3
The default color is a color sampled from a photo, but the "fill color of page item defaults" is returning a swatch:
tell application "Adobe InDesign CS5"
get active document
--> document id 7
get fill color of page item defaults
--> swatch id 3
get space of swatch id 3
--> error number -1708