Pull variable in Flash SWF from HTML page

Here's what I want to do... HTML pages home.htm, about.htm, contact.htm all have the same Flash SWF in the page for nav buttons. Each page loads with target _self, and I want to have the flash movie load on each page at a different frame number BUT I want to use the same SWF.

For Example:
home.htm starts on frame 1 and stops at frame3, when you click the About link, it loads about.htm and sets the goandplay on frame 4. Then with the contact.htm page, it loads and starts on frame 7.

I'm guessing I need a some variable in the HTML code of each .htm file to tell it were the target is to start at whatever frame I decided.

Can this be done.. and if so, where would I start?!?!

thanks,
Basher