function datagrid_getPage(datagridId, pageNum) {
  params = new Array();
  
  params[0] = new Array("datagrid_pageNum_" + datagridId, pageNum);
  params[1] = new Array("datagrid_id", datagridId);
  
  ajax_call(params, datagridId, datagrid_paging_callback);
}

function datagrid_paging_callback(id, response) {
  document.getElementById("datagrid__sys" + id).innerHTML = response;
}