// shows upgrade msg if Nav4 used
browser_version= parseInt(navigator.appVersion);
browser_type = navigator.appName;

if (browser_type == "Netscape" && (browser_version == 4)) {
document.write("<table bgcolor=\"#FFFFCC\" width=\"100%\" cellspacing=\"0\" cellpadding=\"12\"><tr><td align=\"center\">");
document.write("<div align=\"center\" style=\"font: bold 16px Arial,Helvetica,sans-serif;color:red;\"><b>You appear to be using Netscape version 4! This version is no longer supported. Please upgrade your web browser software.</b></div>");
document.write("<div align=\"center\">While we have done our best to ensure that our new web site works on all browsers and operating systems, your browser is simply too old, ");
document.write("and may not display some features of our web site properly. We recommend <a href=\"http://www.opera.com/download/\">Opera</a>, or <a href=\"http://www.mozilla.com/en-US/firefox/\">Firefox</a>. Both are free.");
document.write("</div></td></tr></table>");
}