colM[i].formatter = 'date';
                        colM[i].align = 'center';
                        colM[i].sorttype = 'date';
                        colM[i].datefmt = "dd.mm.yy";
                        colM[i].formatoptions = { srcformat: 'mm/dd/YY', newformat: 'd.m.Y' };
                        colM[i].editoptions = { dataInit: initDateEdit };
                        colM[i].editrules = null;
                        colM[i].searchoptions = {
                            dataInit: function (el) {
                                    $(el).datepicker({
                                        dateFormat: 'dd.mm.yy',
                                        onSelect: function (dateText, inst) {
                                            $("#grid")[0].triggerToolbar();
                                        }
                                    });
                                }                           
                        }

$("#grid").jqGrid("filterToolbar", { width: 'auto', stringResult: true, searchOperators: true, searchOnEnter: false, clearSearch: true });