[T-sh]

<script>
hasIE = /*@cc_on true; @*/false;
hasFireFox = !!window.sidebar;
if (hasIE > 0) {
              alert('IE');
}
else { 
        if (hasFireFox > 0) {
             alert('FF');
         }
        else {
             alert('other');
        }
}
</script>