Den her virker nu meget godt:
<html>
<head>
<script language="JavaScript">
function CheckForm () {
var errorMsg = "";
if (document.form.felt1.value == ""){
errorMsg += "\n\tFelt 1 \t\t- Indtast noget i felt 1\n";
}
if (document.form.felt2.value == ""){
errorMsg += "\n\tFelt 2 \t\t- Indtast noget i felt 2\n";
}
if (document.form.felt3.value == ""){
errorMsg += "\n\tFelt 3 \t\t- Indtast noget i felt 3\n";
}
if (!document.form.email.value.match(/^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/)) {
errorMsg += "\n\tE-mail adresse \t- Indtast en gyldig e-mail adresse\n";
}
if (errorMsg != ""){
msg = "______________________________________________________________\n\n";
msg += "Din besked er ikke blevet sendt da der er problem(er) med formen.\n";
msg += "Venligst ret problemet(erne) og send formen igen.\n";
msg += "______________________________________________________________\n\n";
msg += "Følgende felt(er) skal rettes til: -\n";
errorMsg += alert(msg + errorMsg + "\n\n");
return false;
}
return true;
}
// -->
</script>
<title>Validerings-tjek</title>
</head>
<body>
<form name="form" method="post" action="filnavn.htm" onSubmit="return CheckForm();">
<p>Felt 1:<br><input type="text" name="felt1"><br>
Felt 2:<br> <input type="text" name="felt2"><br>
Felt 3<br><input type="text" name="felt3"><br>
E-mail<br><input type="text" name="email"><br>
</p>
<p><input type="submit" name="submit" value="Send"></p>
</form>
</body>
</html>
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