see the piece of code
<tr>
<td>
Start Date of Conference</td>
<td>
<asp:TextBox ID="txt_startDays" runat="server" onchange="checkdate(this);" ></asp:TextBox>
<a href="javascript:calendar_window=window.open('calendar.aspx?form1=form1.txt_startDays','calendar_window','width=554,height=488');calendar_window.focus()">
<img alt="" src="images/calendar.png" />
</a>
</td>
</tr><%@ Page Language="vb" AutoEventWireup="false" CodeBehind="calendar.aspx.vb" Inherits="gfln1.calendar_aspx" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title></title>
<script runat="server">
Protected Sub Calendar1_DayRender(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DayRenderEventArgs) Handles Calendar1.DayRender
If e.Day.Date < DateTime.Today.Date Then
e.Cell.Enabled = False
e.Cell.ToolTip = "This date is not available"
End If
End Sub
Private Sub Calendar1_SelectionChanged(sender As Object, e As EventArgs)
Dim strjscript As String = "<script language=""javascript"">"
strjscript &= "window.opener." & _
HttpContext.Current.Request.QueryString("form1") & ".value = '" & Calendar1.SelectedDate & "';window.close();"
strjscript = strjscript & "</script" & ">" 'Don't Ask, Tool Bug
Literal1.Text = strjscript 'Set the literal control's text to the JScript code
End Sub
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Calendar id="Calendar1" runat="server"
OnSelectionChanged="Calendar1_SelectionChanged"
ShowTitle="true" DayNameFormat="FirstTwoLetters"
SelectionMode="Day" BackColor="#ffffff"
FirstDayOfWeek="Monday" BorderColor="#000000"
ForeColor="#00000" Height="60" Width="120">
<TitleStyle backcolor="#000080" forecolor="#ffffff" />
<NextPrevStyle backcolor="#000080" forecolor="#ffffff" />
<OtherMonthDayStyle forecolor="#c0c0c0" />
</asp:Calendar>
<asp:Literal id="Literal1" runat="server"></asp:Literal>
</div>
</form>
</body>
</html>see the error now in file attached
