var pop = null;function popdown() {if (pop && !pop.closed) pop.close();}function popup(obj,w,h) {var url = (obj.getAttribute) ? obj.getAttribute('href') : obj.href;if (!url) return true;w = (w) ? w += 20 : 300;h = (h) ? h += 25 : 300;var args = 'width='+w+',height='+h+',resizable,scrollbars';popdown();pop = window.open(url,'',args);return (pop) ? false : true;}window.onunload = popdown;window.onfocus = popdown;