in Kontaktformular Pflichtfelder einfügen

<form method="post" action="<?$PHP_SELF?>">
<div align="center">
<table border="0" width="100%" id="table2">
 
<tr bgcolor=#C0C0C0>
 <td width="34%"><font face="Verdana" size="2">Last Name:</font></td>
 <td width="214"><b><font face="Verdana" size="2"><input name="Nachname"></font></b></td>
 <td width="10%"><font face="Verdana" size="2">First Name:</font></td>
 <td width="168"><b><font face="Verdana" size="2"><input name="Vorname"></font></b></td>
</tr>
<tr>
 <td width="244" bgcolor="gainsboro">
 <font face="Verdana" size="2" color="#000080">*Company:</font></td>
 <td width="214" bgcolor="gainsboro"><b>
 <font color="#000080" face="Verdana" size="2">
 <input name="Firma"></font></b></td>
 <td width="70" bgcolor="gainsboro">
 <font face="Verdana" size="2" color="#000080">*e-mail:</font></td>
 <td width="168" bgcolor="gainsboro"><b><font face="Verdana" size="2">
 <input name="email"></font></b></td>
</tr>
<tr bgcolor=#C0C0C0>
 <td width="244"><font face="Verdana" size="2">Phone:</font></td>
 <td width="214"><b><font face="Verdana" size="2"><input name="Telefon"></font></b></td>
 <td width="70"><font face="Verdana" size="2">Fax:</font></td>
 <td width="168"><b><font face="Verdana" size="2"><input name="Fax"></font></b></td>
</tr>
<tr>
 <td width="244" bgcolor="gainsboro"><font face="Verdana" size="2">Subject:</font></td>
 <td colspan=3 width="464" bgcolor="gainsboro"><b>
 <font face="Verdana" size="2"><select name="Auswahl" size="1">
 <option selected value="general question">general question</option>
 <option value="inquiry">Inquiry</option>
 <option value="order">Order</option>
 <option value="request for documents">Documents</option>
 <option value="ideas/iriticism">Ideas/Criticism</option>
 <option value="request for call back ">Please call back</option></select></font></td>
</tr>
<tr bgcolor=#C0C0C0>
 <td width="244"><font face="Verdana" size="2">Textarea:</font></td>
 <td colspan=3 width="464"><font face="Verdana" size="2"><b><textarea rows="6" name="Bemerkungen" cols="57"></textarea></b></font></font></td>
</tr>
<tr>
 <td colspan=4 height=20 width="714" bgcolor="white"><b>
 <font face="Verdana" size="2">or just send us an e-mail:<font color="#0000FF">
 </font>
 <a href="mailto:kontakt@kontakt.de"><font color="#0000FF">kontakt@kontakt.de</font></a>.</font></b><font face="Arial"></p></font></td>
</tr>
<tr>
 <td colspan=4 align=center height=20 width="714" bgcolor="white"><font face="Arial">
 <input type=hidden name="machma" value="1" style="font-weight: 700"></font>
 <b><font face="Verdana" size="2">
 <input type=submit value="Send from" style="background-color: rgb(55,47,153); color: rgb(255,255,255); border: 1 ridge rgb(0,0,0); font-weight:700"></font></b><p align="left">
 <font color="#000080">
 <b><font face="Verdana" size="1">*) </font></b>
 <font face="Verdana" size="1">requested fields</font></font></td></form>
</td>
<!-- INHALT ENDE -->
 
<?
if ($machma == '1')
{
$body .= "Nachname      :".$Nachname."\n";
$body .= "Vorname       :".$Vorname."\n";
$body .= "Firma         :".$Firma."\n";
$body .= "Email         :".$email."\n";
$body .= "Telefon       :".$Telefon."\n";
$body .= "Fax           :".$Fax."\n";
$body .= "Grund         :".$Auswahl."\n\n";
$body .= "Text          :".$Bemerkungen."\n";
 
$headers = "FROM: $email\n";
$headers .= "Content-Type: text/plain\n";
mail("[EMAIL='kontakt@hier.de']kontakt@hier.de[/EMAIL]", "$Auswahl von der  Homepage", $body, $headers);
echo "<center><font size=2 color=#0000CC><b>Thank you. We´ve received your $Auswahl and get in touch with you as soon as possible</b><br><br>";
}
?>