this.getAttrRPC.invoke(); this.setAttrRPC.invoke(); this.setAttribute('visible', true); Debug.write('error:', mesg); return classroot.name + '-pos'; classroot.setAttribute('x', pos[0]); classroot.setAttribute('y', pos[1]); classroot.setAttribute('visible', true); return classroot.name + '-pos'; return [ classroot.x, classroot.y ]; Move these windows around and reload the page.