var menuwindow = new PopupWindow("menudiv");
menuwindow.offsetY = 0;
menuwindow.offsetX = 128;
menuwindow.autoHide();

function openmenu(anchorname,menuname) {

	if (document.getElementById) {
    		var o = document.getElementById(menuname);
        menuwindow.populate(o.innerHTML);
  }
  menuwindow.showPopup(anchorname);
}