field validation.

Hi,
On my development PC, I created simple form with 3 textbox and a submit button. I added validation to the text boxes. and I added time to last text box.
 <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <asp:RequiredFieldValidator ID="RequiredFieldValidator1"      runat="server"  ErrorMessage="Required!"   ControlToValidate="TextBox1"                         ForeColor="#FF9999"></asp:RequiredFieldValidator>
<br />         <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox> <asp:RequiredFieldValidator ID="RequiredFieldValidator2"       runat="server"  Er ...