I want to write a Javascript client side to change a FileUpload control background to red when empty instead of the "No selected file" and to green when there is a file selected.
The File Upload control markup is
<asp:FileUpload ID="AttachmentsSelecter" runat="server"
Width="500px" BorderColor="Black" BorderStyle="Solid"
Height="35px" BackColor="White" BorderWidth="2px" style="margin-left: 4px; font-size: 22px; font-family: Tahoma;"
CssClass="FileUploadStyle" />
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