1. A computer-implemented method comprising: receiving a user selection of a plurality of data elements, wherein each of the selected data elements is displayed in a Web browser software application that is displayed on a display screen; identifying a first set of one or more functions that apply to the selected plurality of data elements; applying the identified first set of functions to the selected plurality of data elements, resulting in a first set of one or more resulting values; and displaying the first set of resulting values in a window that appears on the display screen.