Something

<html>
<head>
<script language="JavaScript">
var text = "Warning:\nAt least 15 seconds have passed since you loaded this page.\nThe data shown could be out of date trusting this data could result in misconfiguration.";
var t = window.setTimeout('alert( text );', 15);
</script>                                                                                                                                                                                                <head>                                                                                                                                                                                                   </html>