Importing GET url data into Flash

Anybody know of the property, if there is one, that reads the url variables…I think there is, because I think I’ve used it before, I just can’t remember…

For example:

There is a website with URL http://www.mytestsite.com/blah.php?blah=24

and on the blah.php page, I have my SWF.

How can I get my flash file to Read the blah=24?

What I’m trying to accomplish here is being able to dynamically load content in my flash file depending on what the URL variable is set to.

I’m sure its something really simple,

Thanks for the help,

Stefan.