Autonomous Updating of Web View slides for Self-Looping

Question

We just bought an 20" iMac with the purpose of hanging on the wall as a hallway display. I'm making a Keynote 2 application with most of the slides being generated using the Web View images.
I've got my presentation set up as a Automatically play at Startup, loops and is Self-Playing. I'm curious if anyone has figured out a way to set up the presentation so the Web View pages update automatically while in presentation mode. I know if you stop the presentation and restart it, the slides will update, but I'd like it to update while it is playing, so I can just let the presentation run 24/7 and update the pages on the fly.
Thanks in advance for any help!

Answer 1

I tried playing around with AppleScript, saving the AppleScript as an application and entering it into cron. It works about the first couple of times, then about the third time cron is run, it doesn't restart Keynote. It assumes Keynote is already running and playing the slideshow when the script is called.
Here's a copy of the AppleScript:
tell application "Keynote"
     stop slideshow
     quit
end tell
tell application "Finder"
     activate
     select window of desktop
     open document file "iMacBriefing2.key" of folder "Desktop" of folder "amm" of folder "Users" of startup disk
end tell