function writeLink_toStyleSheet(modern, legacy){

 switch (getBrowserLevel()){
  case "legacy" :
   writeLink_to(legacy);
   break;
  case "modern" :
   writeLink_to(modern);
   break;
  default :
   writeLink_to("minstyle.css.html");
   break;
 }

return;
}

function getBrowserLevel(){

var browser = navigator.appName + ":" + navigator.userAgent;

if (!browser) return "unknown";

if (browser.match(/MSIE [1-5]/i))
 return "obsolete";
else if (browser.match(/MSIE 6/i))
 return "legacy";
else if (browser.match(/^Netscape\:.*(?!compatible)$/i) && !browser.match(/gecko/i))
 return "obsolete";
else
 return "modern";

}

function writeLink_to(location) {
  document.writeln('<link rel="StyleSheet" href="' + location + '" />');
}

function nothingToDo(){
}