
            $("#ss").click(function (e) {
                //Acquire cell index from mouse-clicked point of regular cells which are neither fixed rows/columns nor row/column headers.
                var offset = $("#ss").offset();
                var x = e.pageX - offset.left;
                var y = e.pageY - offset.top;
                var target = activeSheet.hitTest(x, y);

                if (target &&
                    (target.rowViewportIndex === 0 || target.rowViewportIndex === 1) &&
                    (target.colViewportIndex === 0 || target.colViewportIndex === 1)) {
                    alert("Row index of mouse-clicked cells: " + target.row + "\n" + "Column index of mouse-clicked cells: " + target.col);
                }
            });