Using Javascript create a simple application that allows a user to upload a file, select an attribute, select a report, and produce the report the web page. For example, a user might upload a CSV text file that contains a sales report of "widgets" by region, store number, and total sales. The user can then select the attribute "total sales" and then select sum by region. Once the user clicks on the "go" button, the application will execute the appropriate code to send the needed information to the web page.