if (NON_EMPTY_SELECTION)
{
	UPDATE_CELL_DATA = 1;

	data_rows  	 = Columns 	(SELECTED_CHART_ROWS);

	temp = SELECTED_CHART_COLS[0];

	for (count = 1; count<data_rows; count = count+1)
	{
		temp2 = SELECTED_CHART_COLS[count];
		if (temp!=temp2)
		{
			break;
		}
	}

	if (count == data_rows)
	{
		SELECTED_CHART_DATA = Transpose(Transpose(SELECTED_CHART_DATA)%0);
		return 0;
	}

	fprintf (stdout, "Please select a single column to sort.\n");
}
else
{
	NON_EMPTY_SELECTION = -1;
}
