Here is my code:
 <tr>
      <td align="right" valign="top" ><B>Date: </B></TD>
      <TD valign="top"><Input class="text3" input type="text" maxLength="12" id="txteffdt" name="date1" size="9" value="<%= FormatDateTime(now(),2)%>">
      <A href="javascript:ShowCalendar(document.myForm.date img1,document.myForm.date1,null, '<%= FormatDateTime(DateAdd("yyyy", -1, now()),2)%>', '<%= FormatDateTime(DateAdd("yyyy", 1, now()),2)%>')" onclick=event.cancelBubble=true;>
      <IMG align=top border=0 height=21 id=dateimg1 src="cal/calendar.gif" style="POSITION: relative" width=34></A></td>
  </tr>

oCom17.Parameters.Add("@txteffdt", system.Data.SqlDbType.datetime, 12).value = txteffdt.text

I get this error message:
BC30456: 'value' is not a member of 'System.Web.UI.WebControls.TextBox'.

If I add runat="server" the popup calander locks up
can anyone give me any ideas

on which line of your posted code does the error tell you to check?

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Inigo: You have a great gift for rhyme.
Fezzik: Yes, yes, some of the time.
Vizzini: Enough of that.
Inigo: Fezzik, are there rocks ahead?
Fezzik: If there are, we'll all be dead.
Vizzini: No more rhymes now, I mean it!
Fezzik: Anybody want a peanut?