[vipericc]

I'm back with another problem onsitus (now in the English forum). I want to put this header in a page but I get the next error when I try to see de .swf of the master page:

TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Main/::init()
at Main$iinit()

The code in the master page is next:
var urlRequest:URLRequest = new URLRequest("homefoot.swf");
var urlLoader:Loader = new Loader();
urlLoader.load (urlRequest);
stage.addChild (urlLoader);