var popupwin=window.open("","SpaceportsAd","width=500, height=100, status=0, location=0");
if (navigator.appName=="Netscape") {
popupwin.resizeTo(500,100);
}
if (popupwin != null) {
popupwin.document.write("Please visit our sponsors.");
popupwin.document.write("");
popupwin.document.write("");
popupwin.document.write("");
}