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 += 100 : 1; // 150px*150px is the default size
h = (h) ? h += 215 : 1;
var args = 'width='+w+',height='+h+',resizable';
popdown(); pop = window.open(url,'',args);
return (pop) ? false : true;
}
window.onunload = popdown; window.onfocus = popdown;