Purtroppo ora non ho la possibilità di metterla on-line.
scrivo il codice:
Funzione:
codice:
<script language="javascript">
function calcola(imp, iva) {
   var imp = document.form1.prezzo1.value +
   document.form1.prezzo2.value + 
   document.form1.prezzo3.value;
   var iva = document.form1.totale.value / 100 * 20;
   var tot = imp.value + iva.value;
}
</script>
Modulo:
codice:
<form action="<?php echo $editFormAction; ?>" method="POST" name="form1" id="form1">
              
	<table class="tabellapicc">
        <tr> 
        <td width="9%" class="right">Numero</td>
        <td colspan="3"><input name="id_fattura" type="text" id="id_fattura" size="5" /> / Anno 
        <input name="anno" type="text" id="anno" value="<?php echo date("Y"); ?>" size="8" /></td>
        </tr>
        <tr> 
        <td height="26" class="right">Cliente</td>
        <td colspan="3">
	<select name="cliente" id="cliente">
        <option value=""></option>
        <?php
	do {  
	?>
        <option value="<?php echo $row_cliente['id_cliente']?>"><?php echo $row_cliente['ragione_sociale']?></option>
        <?php
        } while ($row_cliente = mysql_fetch_assoc($cliente));
        $rows = mysql_num_rows($cliente);
        if($rows > 0) {
        mysql_data_seek($cliente, 0);
	$row_cliente = mysql_fetch_assoc($cliente);
        }
        ?>
        </select></td>
        </tr>
        <tr> 
        <td class="right">Articolo 1</td>
        <td width="44%"> <input name="articolo1" type="text" id="articolo1" size="40" /> 
        </td>
        <td width="14%">Prezzo </td>
        <td width="33%"><input name="prezzo1" type="text" id="prezzo1" value="100.00" size="10" /> </td>
        </tr>
        <tr> 
        <td class="right">Articolo 2</td>
        <td> <input name="articolo2" type="text" id="articolo2" size="40" /> 
        </td>
        <td>Prezzo </td>
        <td><input name="prezzo2" type="text" id="prezzo2" value="200.00" size="10" /> </td>
        </tr>
        <tr> 
        <td class="right">Articolo 3</td>
        <td> <input name="articolo3" type="text" id="articolo3" size="40" /> 
        </td>
        <td>Prezzo </td>
        <td><input name="prezzo3" type="text" id="prezzo3" size="10" /> </td>
        </tr>
        <tr> 
        <td class="right">Articolo 4</td>
        <td> <input name="articolo4" type="text" id="articolo4" size="40" /> 
        </td>
        <td>Prezzo </td>
        <td><input name="prezzo4" type="text" id="prezzo4" size="10" /> </td>
        </tr>
        <tr> 
        <td class="right"></td>
        <td> </td>
        <td>Imponibile                  
        </td>
        <td><input name="totale" type="text" id="totale" class="camposelez" value="" size="9" /> 
        </td>
        </tr>
        <tr> 
        <td class="right"></td>
        <td> </td>
        <td>Imposta 
        </td>
        <td><input name="iva" type="text" id="iva" class="camposelez" value="" size="9" /> 
        </td>
        </tr>
        <tr> 
        <td class="right"></td>
        <td> </td>
        <td>Totale 
        </td>
        <td><input name="totaleiva" type="text" id="totaleiva" class="camposelez" value="" size="9" />  
        Calcola</td>
        </tr>
        <tr> 
        <td></td>
        <td colspan="3"><input type="submit" name="submit" value="Inserisci" class="bottoni"></td>
        </tr>
        </table>		  	
        <input type="hidden" name="MM_insert" value="form1">
        </form>