var popup = null;
function cos(n,u,w,h,r,s) {
popup = window.open(u, n, 'width=' + w + ',height=' + h + 'resizable=' + r + ',scrollbars=' + s +'');
if (popup != null) {
if (popup.opener == null)
popup.opener = self;
popup.location.href = u;
popup.focus();
}
}