This method should be fairly generic and should work for any table with any number of columns and rows!

The Javascript function:
<script language="javascript" type="text/javascript">
function move(direction, tableCell) {
// Prepare variables to make code easier to read!
var table = tableCell.parentNode.parentNode;
var rowCount = table.rows.length;
var currentRow = tableCell.parentNode;
var currentRowIndex = currentRow.rowIndex;
// Disallow movement past bounds of table rows!
if (((currentRowIndex == 0) && (direction == 1)) || ((currentRowIndex == (rowCount - 1)) && (direction == 0))) return false;
// Find the Current Row's Sibling we're swapping position with
var newRowIndex = (direction == 0) ? currentRowIndex + 1 : currentRowIndex - 1;
var currentRowSibling = table.rows[newRowIndex];
// loop here foreach cell
for (var cellIndex = 0; cellIndex < currentRow.cells.length; cellIndex++) {
var currentRowSiblingCellHTML = currentRowSibling.cells[cellIndex].innerHTML;
currentRowSibling.cells[cellIndex].innerHTML = currentRow.cells[cellIndex].innerHTML;
currentRow.cells[cellIndex].innerHTML = currentRowSiblingCellHTML;
}
}
</script>