if (navigator.userAgent.indexOf('Win') != -1 ) {
if (navigator.appName.indexOf('Microsoft') != -1)
document.write('');
else
document.write('');
}
else if (navigator.userAgent.indexOf('Mac') != -1 ){
if (navigator.appName.indexOf('Microsoft') != -1)
document.write('');
else
document.write('');
}
else
document.write('');
function show(aaa, str){
var a;
a = document.all[aaa].innerHTML;
if (a=='')
document.all[aaa].innerHTML = str;
else
document.all[aaa].innerHTML = "";
}