I'm calling html from as3 but how do I have the window open at a certain size

function callLink ( pEvent:MouseEvent):void {
var url:String = “aw01.html”;
var request:URLRequest = new URLRequest(url);
try {
navigateToURL(request, ‘_blank’); // second argument is target
} catch (e:Error) {
trace(“Error occurred!”);
}
}

p1btn.addEventListener(MouseEvent.CLICK, callLink);

it works fine. but how do i make aw01.html open in a window thats width=600 by height=400

pls show me how thanks