var browser=navigator.appName;
    var version=navigator.appVersion;
    var ns4 = false;
    var ie4 = false;

	if (browser == "Netscape") { var versionnumber=version.substring(0,3); }
	else { var msie=version.lastIndexOf("MSIE");
	 var versionnumber=version.substring(msie+5,msie+8); }

	function getplatform(osversion){
	if (navigator.platform >= "Win") {
	 return osversion="Win";
	 } else {
	 return osversion="Mac"; }
	}

	function itsNetscape() {
	 ns4 = true;
	 var osversion = getplatform();
	 if (osversion == "Win") {
	  document.write('<link rel="stylesheet" type="text/css" href="/styles/Structure_ns_ff.css">')
	 }
	 else if (osversion =="Mac") {
	  document.write('<link rel="stylesheet" type="text/css" href="/styles/Structure_mac_ns_saf.css">')
	 } }

	function itsMsie() {
	 var osversion = getplatform();
	 if (osversion =="Win") {
	  if (versionnumber >= 4.0) {
	   ie4 = true
	   document.write('<link rel="stylesheet" type="text/css" href="/styles/Structure.css">') }
	  else { itsother(); }
	 }
	 else if (osversion == "Mac") {
	  if (versionnumber >= 4.5) {
	   ie4 = true
	   document.write('<link rel="stylesheet" type="text/css" href="/styles/Structure_mac_ie.css">'); }
	  else { itsother(); }
	 }
	}

	function itsother() {
		//alert("Denna sida st\366djer inte din browserversion!\nVar v\344nlig uppdatera.");
		document.write('<link rel="stylesheet" type="text/css" href="/styles/structure.css">');
	  }
	  
	function itsotherBrowser() {
		//alert("Denna sida st\366djer inte din browser!");
		document.write('<link rel="stylesheet" type="text/css" href="/styles/structure.css">');
	  }

	if ((browser == "Netscape") && (versionnumber >= 4)) { itsNetscape(); }
	else if ((browser == "Microsoft Internet Explorer")) { itsMsie(); }
	else { itsotherBrowser(); }