Receiving a variable passed via HTML in AS3.0

1

my HTML is sending a variable called “username” to my flash.
how can I receive it in flash?

i tried like below.

in HTML


 <param name="flashvars" value="username = MYNAME" />

in FLASH


var username:String;
var value:String;
var obj:Object=LoaderInfo(root.loaderInfo).parameters;
username = String(obj[value]);

thank you.