Jason's date input calendar

[itjobli]

Hi,

I'm trying to use Jason's Date input calender and would appreciate some help.
http://www.dynamicdrive.com/dynamicindex7/jasoncalendar.htm

Following the instructions, I've no problem getting it to work on my browser.

However when I wish to read the hidden date value from the click event of the button (see below), I do not know how. The code is behind the form in a separate file ( .aspx.vb).

<script>DateInput('hStartDate', true, 'YYYY/MM/DD')</script></td>
<asp:Button ID="SelectDate" Text="SelectDate" runat="server" />

Any idea how I could pass the hidden value to the button event ?

Thanks.
itjob