udregning af to felter
<script language="javascript">function udregn() {
tal1 = document.salgs_pris.value * 1;
tal2 = document.solgt_pris.value * 1;
rabat.value = tal1 + tal2;
}
</script>
<td width="72" align="center" height="16"><font face="Arial" size="2"><input type="text" name="salgs_pris" onChange="udregn()" size="5" style="text-align: Center" value="200"></font></td>
<td width="72" align="center" height="16"><font face="Arial" size="2"><input type="text" name="solgt_pris" onChange="udregn()" size="5" style="text-align: Center" value="210"></font></td>
<td width="72" align="center" height="16"><font face="Arial" size="2"><input type="text" name="rabat" size="5" style="text-align: Center"></font></td>
Hvad er problemet ved denne ?
