empty selectedChunks fails to return insertion Point values

[FlexibleLearning at aol.com]

>I have a palette of html mark up tools that operate on the top window.
>I am unable to get the insertion point for an empty cursor from the 
>selectedChunk function (it used to work!). A test button in the palette
>with its traversalOn set to false (so as not to deselect text in the 
>top Stack).


Does this not work?

on mouseUp
   go stack "myStack"
   put the selectedChunk
end mouseUp

/H