var menu1 = new XulMenu("menu1");
menu1.type = "vertical";
menu1.position.level1.left = 0;
menu1.position.level1.top = 0;
menu1.position.levelX.top = 0;
menu1.position.levelX.left = 0;
menu1.arrow1 = "../images/arrow1.gif";
menu1.arrow2 = "../images/arrow2.gif";
menu1.init();