<script>
var str="javascript";
var num =1234;
with(document)
{
writeln(str.toUpperCase()+"<br/>");
write(str.toString().charAt(2),"<br/>");
write(str.substring(0,4),"<br/>");
}
</script>
<script>
with(document)
{
write(screen.availHeight,"<br>");
write(screen.availWidth),"<br>");
write(screen.availHeight,"<br>")
}
</script>