Uffa !!! l'alert non mi da il valore del campo ma mi da undefined !!!
Ma perchè ??? Non lo vedo sto errore...

codice:
<script language="javascript"> 
// FUNZIONE PER CONTROLLARE SE SON CAMBIATI DEI CAMPI E NON SI HA SLVATO
function controlloSubmit(campoForm){
alert(campoForm)
return false
}
</script>

</HEAD>

<body>



	

<%
Set rs = Server.CreateObject("ADODB.Recordset")		
%>
	

<%
'On Error resume next
%>

<table width="480" cellpadding="0" cellspacing="0" border="0">
	<tr>
		<td valign="top">
			<table width="240" cellpadding="0" cellspacing="0" border="0">
				<%
				execStr = "Exec RicercaPrivate"
				Set rs = cn.Execute (execStr)
				if not rs.EOF and not rs.bof then
					Do while not RS.EOF		
					%>
					
					<form name="<%=cod_farmacia%>FORM" method="post" action="managerPrivate.asp" onSubmit="return controlloSubmit(this.farmacia.value)">
    					<tr valign="middle">
    						<td>
    							[img]../../Images/farmacia.gif[/img]
    						</td>
    						<td> </td>
    						<td valign="middle">
    							<div class="normal-text">farmacia:&nbsp</div>
    						</td>
    						<td></td>
    						<td valign="middle">
    							<input type="text" id="farmacia" name="farmacia" size="38" class="modulo" value="<%=rs("farmacia")%>" maxlength="50" <%=classVIRG%>>
    						</td>
    						<td valign="bottom">
    							<input type="image"  
								src="../../Images/modifica_01.gif"
								onMouseOver="this.src='../../Images/modifica_01-sopra.gif'"
								onMouseOut="this.src='../../Images/modifica_01.gif'"
								valign="bottom">
    						</td>
    						<td valign="bottom">
    							<input type="image"  
								src="../../Images/elimina_01.gif"
								onMouseOver="this.src='../../Images/elimina_01-sopra.gif'"
								onMouseOut="this.src='../../Images/elimina_01.gif'"
								valign="bottom">
    						</td>    						
    					</tr>
						<tr valign="top">
						    <td height="6"></td>
    						<td height="6"></td>
    						<td height="6"></td>
    						<td height="6"></td>
    						<td height="6"></td>
    						<td height="6"></td>    						
    					</tr>
						<%	
						RS.MoveNext
					Loop
					rs.close
					end if
					%>
				</form>	
   			</table>