var name = navigator.appName.toLowerCase();
var ver = navigator.appVersion.toLowerCase();

if (name == "microsoft internet explorer" && ver >="3") {
        if (ver.indexOf("mac") != -1) {
                document.write('<LINK REL="styleSheet" HREF="../css/content_ie.css" TYPE="text/css">');
        } else {
                document.write('<LINK REL="styleSheet" HREF="../css/content_ie.css" TYPE="text/css">');
        }

} else if (name == "netscape" && ver >="3") {
        if(ver.indexOf("mac") != -1) {
                document.write('<LINK REL="styleSheet" HREF="../css/content_ns.css" TYPE="text/css">');
        } else {
                document.write('<LINK REL="styleSheet" HREF="../css/content_ns.css" TYPE="text/css">');
        }

} else {
        document.write('<LINK REL="styleSheet" HREF="../css/content_ie.css" TYPE="text/css">');
}

function  openWin(url) {
if (navigator.appName == "Netscape")  
    mywin1 = window.open(url,"win1",'toolbar=0,location=0,directories=0,status=0,menubar=1,scrollbars=0,resizable=0,width=590,height=500,left=100,top=25');
else 
    mywin2 = window.open(url,"win2",'toolbar=0,location=0,directories=0,status=0,menubar=1,scrollbars=0,resizable=0,width=590,height=500,left=100,top=25');
}