per JS verhindern, dass Formular abgeschickt wird.

[Rouven]

Morgen!

...
<script language="javascript">
function pruefeFormular() {
if (allesok)
  return true;
else
  return false;
}
</script>
</head>

<form ... onsubmit="javascript: return pruefeFormular()">
...
<input type="submit" ...>
</form>