var app, os, ver, agt;
		app = navigator.appName;
		os = navigator.userAgent;
		ver = parseInt(navigator.appVersion);
		agt = navigator.userAgent.toLowerCase();

		ns4 = (app == "Netscape" && ver >= 4 && ver < 5)? 1:0;
		ns5 = (app == "Netscape" && ver >= 5)? 1:0;
		
		safari = (app == "Safari")? 1:0;
		ie = (app == "Microsoft Internet Explorer" && ver == 4)? 1:0;
		ie5 = (app == "Microsoft Internet Explorer" && ver == 4 && (agt.indexOf("msie 5.")!=-1))? 1:0;
		ie6 = (app == "Microsoft Internet Explorer" && ver == 4 && (agt.indexOf("msie 6.")!=-1))? 1:0;

		var is_moz = ((agt.indexOf("mozilla") != -1) && !ie) ;
		var is_safari = ((agt.indexOf("safari") != -1) && !ie) ;

		var is_opera = (agt.indexOf("opera") != -1);
	   var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
	   var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
	   var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
	   var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
		var is_opera6 = (agt.indexOf("opera 6") != -1 || agt.indexOf("opera/6") != -1);
	   var is_operaup = (is_opera && !is_opera2 && !is_opera3 && !is_opera4 && !is_opera5);
		pc = (os.indexOf("Win") != -1)? 1:0;
		iefamily = (ie5 || ie6)? 1:0;
		iepc = (iefamily) && (pc)? 1:0;
		iemac = (iefamily) && (!pc)? 1:0;

		if (((pc) && ((is_moz) || (is_opera))) || (iemac) || (is_safari)) {
			document.writeln('<link rel="stylesheet" type="text/css" href="/home/loung/home.nsf/lo_ung_opera.css" media="screen" />');
		}
		if (iemac) {
			document.writeln('<link rel="stylesheet" type="text/css" href="/home/loung/home.nsf/lo_ung_macIE5.css" media="screen" />');
		}
		if ((pc) && (ie5)) {
			document.writeln('<link rel="stylesheet" type="text/css" href="/home/loung/home.nsf/lo_ung_winIE55.css" media="screen" />');
		}