<head>
<script language="javascript">
<!--
var a;
var b;
a=prompt("input numberfor plus")
a=parselnt(a);
b=prompt("input another number")
b=parselnt(b);
if (a>b)
{
b=a-b;
alert(b);
}
else
{ b=a+b;
alert(b);
}
</script>
</head>
</html>
