var vNum = navigator.appVersion.charAt(0);
var bName = navigator.appName.charAt(0);
if (bName =="M" && vNum < 4) Location.herf="errer.html";
if (bName =="N" && vNum < 4) Location.herf="errer.html";
if(navigator.appVersion.indexOf('Mac') > -1)
{
if( bName =="M")
{
// MAC IE
document.writeln("");
}
else{
if( vNum<5){
// MAC NETSCAPE 4.x
document.writeln("");
}
else{
// MAC NETSCAPE 6.x
document.writeln("");
}
}
}
else{
if( bName =="M"){
// WIN IE
document.writeln("");
}
else{
if( vNum<5){
// WIN NETSCAPE 4.x
document.writeln("");
}
else{
// WIN NETSCAPE 6.x
document.writeln("");
}
}
}