trying to change row background color please

Hi, sorry for my english.
I'm trying to change the color of a row depending on the value of a cell (Statut).
the background of the row will change after each change of the cell on column 14 (Statut).
I'm using datatables on a theme called adminica which integrate datatable, here is my code :

function adminicaDataTables() {
    if ($(".datatable").length > 0 && $.fn.dataTable) {
        var e = $("#dt1 .datatable").dataTable({
		   bJQueryUI: true,
			sScrollX: "",
			bSortClasses: true,
			aaSorting: [
			[0, "desc"]
			],
			bAutoWidth: true,
			sAjaxSource: "get_data.php",
			bInfo: true,
			sScrollX: "101%",
			bScrollCollapse: !0,
			sPaginationType: "full_numbers",
			bRetrieve: true,
                        sScrollX: "101%",
			fnRowCallback: function (nRow, aData, iDisplayIndex, iDisplayIndexFull) {
				if (aData[14] == "ok") {
				$(nRow).css('background-color', 'red').css('font-style', 'italic');
				}
			}

        }) [...]

Thanks a lot...