Eskobo uses the Microsoft Atlas framework. Atlas is pretty nifty actually, I especially appreciate it for being readable and un-obfuscated so it's simple for me to debug, unlike several other . unreadable . nightmares out there..
Get a clue, guys.
To try this at home: load Eskobo, view source, search for and remove
Save and/or re-load from cache (as in using the menu entry Tools > Advanced > Re-load from cache in 8.5 or the "Reload from cache" button in 9's editor).