question on DynarchLib DlLayout

[Joe]

I'd like to have a keystroke pop up a DynarchLib Dialog. I have it
working, but I can't figure out how to get it to stretch to the width
of the browser window and how to set it's coordinates. I'd like to
place it right above the modeline (or perhaps at the bottom of the
entire window haven't decided yet) and have it stretch the entire
width of the window.

I tried: layout.setSize({x: "100%", y:100}) but that didn't work.

thanks,
-joe