<html>
<head>
<SCRIPT type="text/javascript">
function askuser()
{
answer=prompt("Are you Male or Female?")
if ( answer == "female")
{document.bgColor="pink"}
if(answer == "male")
{document.bgColor="lightblue"}
}
</script>
</head>
<body bgcolor="lightyellow">
<h1>Welcome</h1>
<form>
<input type="button"
value="Identify your Sex"
onClick="askuser()">
</form>
</body
</html>