[flexcoders] FlashVar to use in a URLRequest AS3 CS2

[ShaunM]

Hello Everyone,
This is my first time, please be gentle. 

I've used this code before to bring in other text:

var varName:String;
var paramObj:Object = LoaderInfo(this.root.loaderInfo).parameters;
for (varName in paramObj){
         myFlashVar = String(paramObj[varName]);
}
var myFlashVar:String;



But when I try to call the variable in an URLRequest it doesn't work in a 
browser:

var request:URLRequest = new URLRequest (myFlashVar);
                try {
                        navigateToURL(request);
                }catch (e:Error){
                        trace("Error occurred!");
                }

Am I doing something wrong??
Thanks for the help