Manipulate The Grid

Instructions

This webpage is manipulated by Java Script. When you colorize it the cells will be alternating colors for each row and column (red and green). When you click the Monotone button all cells have one color. When you add or subtract rows or columns you are removing or adding a new last row or column. The inner text for each cell contains the pair of values for the row and column number (comma separated).
1,1 1,2 1,3 1,4
2,1 2,2 2,3 2,4
3,1 3,2 3,3 3,4
4,1 4,2 4,3 4,4