Actionscript3 read Flash vars in AS3

Small example illustrating how to get to passed flash vars in AS3

var keyStr:String;
var valueStr:String;
var paramObj:Object = LoaderInfo(this.root.loaderInfo).parameters;
for (keyStr in paramObj) {
    valueStr = String(paramObj[keyStr]);
    tf.appendText("\t" + keyStr + ":\t" + valueStr + "\n");
}