Udregning fra 3 input

Her er 2 : http://www.eksperten.dk/spm/299079

her:
<form>
  <script type="text/javascript" language="JavaScript"><!--
function beregn( frmObj ) {
var t1 = parseInt( "0"+frmObj.Produkt.value, 10 );
var t2 = parseInt( "0"+frmObj.Antal.value);
frmObj.Pris.value = (t2 *t1);
}; //end beregn( HTML Form objekt )

// --></script>
<table cellspacing="0"
  cellpadding="0" width="186" height="*">
    <tr>
      <td width="60" align="left">Produkt</td>
      <td width="10"><div align="center"><center><p>:</td>
      <td align="left" width="116"><select name="Produkt" value onblur="beregn(this.form);"
      class="but" size="1">
        <option value="100">1. Produkt</option>
        <option value="200">2.&nbsp;Produkt</option>
        <option value="300">3.&nbsp;Produkt</option>
      </select></td>
    </tr>
    <tr align="center">
      <td width="60" align="left">Antal</td>
      <td width="10"><div align="center"><center><p>:</td>
      <td align="left" width="116"><input name="Antal" value onblur="beregn(this.form);"
      type="text" class="but1" size="9" maxlength="9">Stk.</td>
    </tr>
    <tr align="center">
      <td width="60" align="left">Pris (i alt)</td>
      <td width="10"><div align="center"><center><p>:</td>
      <td align="left" width="116"><input name="Pris" value onfocus="this.blur();" type="text"
      class="but1" size="9" maxlength="9">Kr.</td>
    </tr>
  </table>
</form>

Tak det var noget jeg kunne bruge til noget!!!

Det var godt :-) Tak for points
/No_Doubt