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
	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
	ie7 = (app == "Microsoft Internet Explorer" && ver == 4 && (agt.indexOf("msie 7.")!=-1))? 1:0
	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 || ie7)? 1:0
	iepc = (iefamily) && (pc)? 1:0
	browser = (iefamily) || (ns5) || (is_operaup)? 1:0
	
	if(browser){
		if(iefamily){
			if(pc){
				if(!(ie6 || ie7)) document.writeln('<LINK REL="stylesheet" HREF="css/ie5fix.css" TYPE="text/css">')
			} else {
				document.writeln('<LINK REL="stylesheet" HREF="css/macfix.css" TYPE="text/css">')
			}
		}
	} else {
		document.location.href = "oldbrowser.htm"
	}