Warum geht dieses Script nicht?:
<html>
<head>
<title>BDKJ-Gaimersheim - Chat & Forum</title>
<script type="text/javascript">
<!--
function Nickname() {
if ((chatlogin.nickname.value == 'Nickname') || (chatlogin.nickname.value == '')) {
alert("Bitte gib einen Nickname ein!");
chatlogin.nickname.focus();
return false;
}
}
//-->
</script>
</head>
<body>
<form action="http://chat.internetworx.de/?action=login" method="POST" name="chatlogin" onSubmit="Nickname();">
<input type="text" name="nickname" value="Nickname" onFocus="nickname.value='';">
<input type="submit" value="Chat - Login">
</form>
</body>
</html>