var browser=navigator.appName;var ver=navigator.appVersion;var thestart=parseFloat(ver.indexOf("MSIE"))+1;var brow_ver=parseFloat(ver.substring(thestart+4,thestart+7));if((browser=="Microsoft Internet Explorer")&&(brow_ver<6)){window.alert("You are using Internet Explorer 5.5 or lower which is extremely out-of-date. It is recommended you upgrade your browser to Internet Explorer 6/7 or Firefox. This is due to changes in browser standards. You may continue to view the site but with limited functionality.")};