Image Upload and Retrieve with FileUpload server Control

 Hi All,
      I have 3 FileUpload Controls in a page and a save button.
    after browsing image from each control i clickon on the Save button to save the images.
my code is Like This
<form id="form1" runat="server">
    <div>
        <asp:FileUpload ID="FileUpload1" runat="server" /><br />
        <asp:FileUpload ID="FileUpload2" runat="server" /><br />
        <asp:FileUpload ID="FileUpload3" runat="server" /><br />
        <asp:Button ID="btnSave" runat="server" Text="Save" OnClick="btnSave_Click"/>
       
    </d ...