Countdown to day of the week? (and not date)

Okay… just want to say that this site rocks! It’s helped me a lot in the past, and I’m kinda stumped right now - hence my inquiry to the mojo masters now :smiley:

[/brown nose]

Okay, now that that’s out of the way, here’s basically what I need to do:

I need a script that is very similar to the countdown script featured in the advanced tutorials section, but counts down to a specific day of the week & time (as opposed to a set calendar date), i.e. Mondays @ 7:00pm.

The script will be implemented on a non-commercial radio station website (http://www.kuzr.com), and will be used to show the countdown to the next live show. It will only have to store one date and time, as I plan on making multiple scripts to suit multiple shows.

So basically to simplify things, I just need a script that will count down to a specific time of a day of the week (Mon, Tues, Wed, etc) and NOT calendar dates.

Thanks for any help in advance!