jQuery Grid Plugin - jqGrid

We have created a custom formatter for a cell, an imageFormatter, which takes the cell value and returns a div who's css class is set to the cell value.

We use addrow , removerow the allow users to move a row up or down. After the row is moved, jqgrid will redisplay all rows, calling the custom formatter again, but this the the cellvalue parameter does not contain the original value, but the result of the previous formatting  (<div class="cellvalue1"></div> instead of just cellvalue1)