// Detect the browsername
browsername=navigator.appName;
if (browsername.indexOf("Netscape")!=-1) {browsername="NS"}
else
{if (browsername.indexOf("Microsoft")!=-1) {browsername="MSIE"}
else {browsername="N/A"}};

//detect the browserversion
browserversion="0";
if (navigator.appVersion.indexOf("2.")!=-1) {browserversion="2"};
if (navigator.appVersion.indexOf("3.")!=-1) {browserversion="3"};
if (navigator.appVersion.indexOf("4.")!=-1) {browserversion="4"};
if (navigator.appVersion.indexOf("5.")!=-1) {browserversion="5"};
if (navigator.appVersion.indexOf("6.")!=-1) {browserversion="6"};

// Send visitor to relevant pages
if (browsername=="NS") 
{ document.write("<link REL='stylesheet' HREF='styles_ns.css' TYPE='text/css'>") };

if (browsername=="MSIE")
{ if (browserversion>=6)
  { document.write("<link REL='stylesheet' HREF='styles.css' TYPE='text/css'>") }
  
  else { document.write("<link REL='stylesheet' HREF='styles.css' TYPE='text/css'>") } };