JavaScript DHTML/Javascript Objects/popup
"popup" Example
<html>
<body>
<script language="JavaScript">
var popup = window.createPopup();
popup.document.body.innerHTML = "This button will navigate to another site!";
popup.document.body.style.backgroundColor = "yellow";
</script>
<input type="button"
onClick="location.href="http://www.wbex.ru/";"
onmouseover="popup.show(100, 100, 200, 100, document.body);"
onmouseout="popup.hide();"
value="Navigate to another site">
</body>
</html>