system=navigator.appVersion;
if (navigator.appVersion.indexOf("Mac") != -1 ) OS = "Mac";
else if (navigator.appVersion.indexOf("PowerPC") != -1 ) OS = "Mac";
else if (navigator.appVersion.indexOf("Win") != -1 ) OS = "Win";
else if (navigator.appVersion.indexOf("SunOS") != -1 ) OS = "Solaris";
else  OS = "Linux";
//Determine Browser Version
bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
//Write Style Sheets
if (OS == "Mac" && bName=="Netscape"){
        document.write('<link rel="stylesheet" type="text/css" href="navigatorStyles.css">');
    }
else if (OS =="Mac" && bName=="Microsoft Internet Explorer"){
        document.write('<link rel="stylesheet" type="text/css" href="navigatorStyles.css">');
    }
else if (OS =="Win" | OS == "Linux" && bName=="Netscape"){
        document.write('<link rel="stylesheet" type="text/css" href="ieStyles.css">');
    }
else if (OS =="Solaris" && bName=="Netscape"){
        document.write('<link rel="stylesheet" type="text/css" href="navigatorStyles.css">');
    }
else if (OS =="Win" | OS == "Linux" && bName=="Microsoft Internet Explorer"){
        document.write('<link rel="stylesheet" type="text/css" href="ieStyles.css">');
        }