funktion beregn(f)

som det ser ud nu laver den en total udregning det er også fint men det jeg mangler er hvordan man for værdien fra rullemenuen over i boxen til højre for den og også lægger det til det total beløbet.

Ferretsdk

<html>

<head>
<meta http-equiv="Content-Type"
content="text/html; charset=iso-8859-1">
<meta name="GENERATOR" content="Microsoft FrontPage Express 2.0">
<title></title>
</head>

<body bgcolor="#FF0000" text="#FFFFFF" link="#0000FF"
vlink="#800080" onload="startZoom();">

<script>
        function beregn(f) {
        var pris = parseInt(f.pris.value)
        var glas = parseInt(f.glas.value)
        var resultat =  glas * pris
        f.total.value = resultat
        document.total.total.value=parseInt(document.udregning1.total.value)+parseInt(document.udregning2.total.value)+parseInt(document.udregning3.total.value)+parseInt(document.udregning4.total.value);
                      }
</script>

<p align="center"><br>
<br>
</p>
<div align="center"><center>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
    <tr>
        <td width="350"><form action="java script:beregn(udregning1)" method="POST" name="udregning1"></td>
        <td align="center" width="50"><input type="text" size="3" name="glas" value="0" onchange="beregn(udregning1);"></td>
        <td align="center" width="150">33kr. stk.</td>
        <td><input type="text" size="3" name="pris" value="33" readonly></td>
        <td width="100"> Ialt: <input type="text" size="5" name="total" value="0" readonly></td>
    </tr>
</table></form>
</center></div>

<p align="center"><br>
<br>
</p>
<div align="center"><center>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
    <tr>
        <td width="350"><form action="java script:beregn(udregning2)" method="POST" name="udregning2"></td>
        <td align="center" width="50"><input type="text" size="3" name="glas" value="0" onchange="beregn(udregning2);"></td>
        <td align="center" width="150">33kr. stk.</td>
        <td><input type="text" size="3" name="pris" value="33" readonly></td>
        <td width="100"> Ialt: <input type="text" size="5" name="total" value="0" readonly></td>
  </tr>
</table></form>
</center></div>

<p align="center"><br>
<br>
</p>
<div align="center"><center>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
    <tr>
        <td width="350"><form action="java script:beregn(udregning3)" method="POST" name="udregning3"></td>
        <td align="left" width="50"><input type="text" size="3" name="glas" value="0" onchange="beregn(udregning3);"></td>
        <td align="center" width="150">70kr. stk.</td>
        <td><input type="text" size="3" name="pris" value="70" readonly></td>
        <td width="100"> Ialt: <input type="text" size="5" name="total" value="0" readonly></td>
  </tr>
</table></form>
</center></div>

<p align="center"><br>
<br>
</p>
<div align="center"><center>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
    <tr>
        <td width="350"><form action="java script:beregn(udregning4)" method="POST" name="udregning4"></td>
        <td align="center" width="50"><input type="text" size="3" name="glas" value="0" onchange="beregn(udregning4);"></td>
        <td align="center" width="150">116kr. stk.</td>
        <td><input type="text" size="3" name="pris" value="116" readonly></td>
        <td width="100"> Ialt: <input type="text" size="5" name="total" value="0" readonly></td>
        </tr>
</table>
</form>


<div align="center"><center>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
    <tr>
        <td align="left">Porto + ekspedition.</td><td align="center"> <select name="Porto" size="1">
            <option>Vælg antal kilo</option>
            <option value="31,50">0-1 kg</option>
            <option value="33,75">1-5 kg</option>
            <option value="43">5-10 kg</option>
            <option value="64">10-15 kg</option>
            <option value="70">15-20 kg</option>
        </select></td>
        <td><input type="text" size="10" name="pris" value="0.00" align="right" readonly></td>
    </tr>
</table>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
    <tr>
        <td align="left"><form name="total">Total Køb:</td>
        <td><input type="text" size="10" name="total" readonly></td>
    </tr>
</form>
</table>
</center></div>
</body>
</html>