var agent = navigator.userAgent;
if(navigator.appVersion.indexOf('Mac') > 1){
document.write('');
}else if(agent.indexOf('Win') >= 0 && navigator.appVersion.indexOf('M')!=-1){
document.write('');
}else if(agent.indexOf('Win') >= 0 && navigator.appName.charAt(0) == "N" && navigator.appVersion.charAt(0) >= 4){
document.write('');
}else{
document.write('');
}