// document write
var browserName=navigator.appName;
if (browserName=="Netscape"){
//Netscape User
document.write("");
}else{
if (browserName=="Microsoft Internet Explorer"){
if (navigator.appVersion.indexOf("Mac")!=-1){
//Mac Explorer User
document.write("");
}else{
document.write("");
}
}else{
//Other
document.write("");
}
}