Uploading files in asp.net

Hi I created button upload and with popup window after I upload documents using browse in popup window and click ok its not displaying aspx page please suggest me how to do this...Below is the code

<divid="popup1"class="overlay">

<divclass="popup">

<h2>Upload Document</h2>

<aclass="close"href="#">×</a>

<divclass="content">

<formaction=""method="post"enctype="multipart/form-data"name="form"id="form1">

<label>Choose File

 <asp:FileuploadID="FileUpload1"class="multi"runat="server"></asp:Fileupload>

  <label> Destination Folder

<asp:FileuploadID="FileUpload2"class="multi"runat="server"></asp:Fileupload>

<br/>

</label>

</form>

<asp:ButtonID="btnOk"runat="server"Text="OK"/>

<asp:ButtonID="btnCancel"runat="server"Text="Cancel"/>

</div>

</div>

</div>