To load an external js-file you can use yepnope like schown here.
But when I define a .css file like this in the stage-composition-ready-window:
yepnope({nope:['mystyle.css']});
The correct loading code is integrated in the generated source but css is not working.
Can someone please help me?
Does the solution to call an external source file using jQuery itself not do what you need?
$("<link rel='stylesheet' type='text/css' href='mystyle.css'>").appendTo("#Stage");