So, easy enough to script a select all guides on doc... But, now I run into guides that run off page and into the pasteboard across a spread. The script sees this as an overset and will not select them. Any quick way to edit those to be on page or an entry suggestion to the script?
This Applescript should work (I don't have the author's name to credit them).
tell application "Adobe InDesign CS3"
tell active document
delete every guide
(Edit -- sorry, I just realized you wanted to select the guides, not delete them.)
Generally speaking the idea of selecting things on multiple pages of the document doesn't work very well in the InDesign object model.
What do you want to do after you select them?
Tell us a little bit more about the problem you are trying to solve, please?
Also, what scripting language?