GET variables with FLASH and FIREFOX

1

What im trying to do is very simple. I have a flash movie as teh header of a page and it has an intro animation. Well I want the intro to play only once so i am using a session variable to check if the user has seen it already.

u can see teh following code in action here

View the link in IE and Firefox

here is teh PHP code:


<?php

session_start();
if (empty($_SESSION[flash])){
        $jump_to="intro"; 
        $_SESSION[flash]="nointro"; 
} else {
        $jump_to=$_SESSION[flash];
}

?>

HTML Code to put the flash movie in:

<object ...
...
   <param name="movie" value="header.swf?start=<?php echo $jump_to; ?>         
...
</object>

the actionscript:


test = _URL;
if ( _level0.start == undefined) {
	main.gotoAndPlay(1);
} else {
	if (_level0.start == "intro") {
		main.gotoAndPlay(1);
	} else if (_level0.start == "nointro") {
		main.gotoAndPlay(16);
	}
}

the test variable is to show you the problem.

This code works PERFECTLY in IE - it doesnt play the intro or anything.
in IE the url of the movie is header.swf?start=intro

Firefox however it does not. I have no idea why. Maybe firefox treats GET variables differently.
in Firefox the url is header.swf

what happened to the string??
How do i access GET variables in Flash when they are from FF??

Thanks :alien: