Form per selezionare una data

Questo script permette di selezionare una data:

<form name="dtForm" method="post" 
action="elabora.asp">
<table width="470" border="0" cellspacing="0" 
cellpadding="0">
<tr> 
<td width="117"> 
<div align="center"> 
<select name="giorno">
<%
for ctInd=1 to 31 
%>
<option value="<%=ctInd%>"><%=ctInd%></option>
<%
next
%>
</select>
</div></td>
<td 
width="117"> 
<div align="center"> 
<select name="mese">
<%
for ctInd=1 to 12 
%>
<option value="<%=ctInd%>"><%= 
monthName(ctInd)%></option>
<%
next
%> 
</select>
</div>
</td>
<td 
width="118"> 
<div align="center"> 
<select name="anno">
<%
for ctInd=datePart("yyyy",now) to datePart("yyyy",now) 
- 100 step -1
%>
<option value="<%=ctInd%>"><%=ctInd%></option>
<%
next
%> 
</select>
</div>
</td>
<td 
width="118"> 
<div align="center"> 
<input type="submit" name="Submit" value="Invia 
Data">
</div>
</td>
</tr>
</table>
</form>