Partially fixes: http://code.google.com/p/zfdatagrid/issues/detail?id=331
Partially fixes: http://code.google.com/p/zfdatagrid/issues/detail?id=331

zervel/grid,zervel/grid,zervel/grid,zfdatagrid/grid,zfdatagrid/grid,zfdatagrid/grid,zfdatagrid/grid