Help retrieving query string value from AS

programming flash
1

Ok guys i have 7 buttons which according to the value retrieved from the query string the button should be enabled or go to a specified frame this is the code im using for the movieclips

[AS]onClipEvent (load) {
if (menu >=4) {
this.gotoAndStop(2);
} else {
this.gotoAndStop(1);
}
}[/AS]
the variable is called menu the buttons are supposed to retrive the value of menu variable that i’m passing through parameter via HTTP in order to go to the frame specified.

Is this possible??

any help would be appreciated thanks