PromptBox

<html>
<head>
<script type="text/javascript">
function prikazi()
{ var name=prompt("Unesite ime", "unesite ime");
if (name!=null && name!="")
{document.write("Zdravo"+name+"!")}
}
</script>
</head>
<body>
<input type="button" onclick="prikazi()" value="Click you fool!"/>
</body>
</head>
</html>