using redirect

I have created a simple webform with some ImageButtons, Textboxes, labels and a submit button. I have a procedure so that when an imagebutton is clicked, it simply redirects to another page - For Example:

Code:

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Sub GotoIndex(sender As Object, e As ImageClickEventArgs)
      Response.Redirect("index.aspx")
End Sub

<asp:ImageButton id="home" onclick="GotoIndex" runat="server" src="Images/gifs/btnhome.gif" url="index.aspx" img="img" width="112px" height="22px"></asp:ImageButton>

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This works ok so far....

I have added some validation checks for the textboxes using the RequiredFieldValidator control and now my ImageButton wont redirect me to my index.aspx page.

Code:

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<asp:RequiredFieldValidator id="rfvFirstName"
runat="server" controltovalidate="txtFName" ErrorMessage="*"></asp:RequiredFieldValidator>

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When I click the ImageButton with an empty textbox, it does nothing except trigger the ErrorMessage (*).

Anyone?

I set the CausesValidation="False" within the imagebutton