if(navigator.appName.charAt(0)=="N"){
if(navigator.appVersion.charAt(0)<=5){
document.write('');
document.close();
}
if(navigator.appVersion.charAt(0)>=5){
document.write('');
document.close();
}
}
else if(navigator.appName.charAt(0)=="M"){
if(navigator.appVersion.charAt(0)>=3){
document.write('');
document.close();
}
}
else
document.write('');
document.close();