var detect = navigator.userAgent.toLowerCase();
var OS,browser,version,total,thestring;

if (checkIt('konqueror'))
{
	browser = "Konqueror";
	OS = "Linux";
}
else if (checkIt('safari')) browser = "Safari"
else if (checkIt('omniweb')) browser = "OmniWeb"
else if (checkIt('opera')) browser = "Opera"
else if (checkIt('webtv')) browser = "WebTV";
else if (checkIt('icab')) browser = "iCab"
else if (checkIt('msie')) browser = "Internet Explorer"
else if (!checkIt('compatible'))
{
       browser = "Netscape Navigator"
       version = detect.charAt(8);
}
else browser = "An unknown browser";

if (!version) version = detect.charAt(place + thestring.length);

function checkIt(string)
{
       place = detect.indexOf(string) + 1;
       thestring = string;
       return place;
}

function alertBrowserIncompatibility() {
     if( !(browser == "Netscape Navigator" && version >= 2) && !(browser == "Internet Explorer" && version >= 7) && !(browser == "Safari" && version >= 2)) {
          document.write("<div id=\"alert\">Note: this site is optimized for standard-compliant browsers.  We recommend <a href=\"http://mozilla.com\">Mozilla Firefox</a>.  ");
          /*
		  if (browser == "Internet Explorer" && version < 7) {
               document.write("For Internet Explorer junkies, <a href=\"http://www.microsoft.com/windows/downloads/ie\">version 7</a> would definitely be an improvement.");
          }
          if (browser == "Safari" && version < 2) {
               document.write("For Safari junkies we recommend an upgrade to the latest version of OSX.  If you can't afford one, use <a href=\"http://webkit.org\">WebKit</a>");
          }
		  */
		document.write("</div>");
	}
}