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+=20:450;h=(h)?h+=25:500;var args='width='+w+',height='+h+',resizable,scrollbars';popdown();pop=window.open(url,'',args);return(pop)?false:true;}
window.onunload=popdown;window.onfocus=popdown;