function popupPage() {
var page = "alert.htm";
windowprops = "height=300,width=320,location=no,"
+ "scrollbars=yes,menubars=no,toolbars=no,resizable=no";

window.open(page, "Popup", windowprops);
}

function popupNewsletter() {
var page = "e-Newsletter.asp";
sLeft = (screen.width) ? (screen.width-480)/2 : 0;
sTop = (screen.height) ? (screen.height-380)/2 : 0;
windowprops = "height=380,width=480,left=" + sLeft + ",top=" + sTop + ",location=no,"
+ "scrollbars=yes,menubars=no,toolbars=no,resizable=no";

window.open(page, "Popup", windowprops);
}