var f2hGetListInJson = function (listName, siteName, fields, callback, query) {
    var $ = jQuery;
    if (fields == undefined)
        fields = ['Title'];

    if (query == undefined)
        query = "<Query><OrderBy><FieldRef Name=\"ID\"/></OrderBy></Query>";

    var viewFields = "";
    $.each(fields, function (k, v) {
        viewFields += "<FieldRef Name='" + v + "' />"
    });
    $().SPServices({
        operation: "GetListItems",
        webURL: siteName,
        listName: listName,
        async: false,
        CAMLViewFields: "<ViewFields>" + viewFields + "</ViewFields>",
        CAMLQuery: query,
        CAMLRowLimit: 0,
        completefunc: function (data, status) {

            var error = $(data.responseXML).find('errorstring').text();
            var error_code = $(data.responseXML).find('errorcode').text();

            if (error_code == "0x82000006") {
                alert("UWAGA. Lista '" + listName  + "' nie została znaleziona. Nie można kontynuować.");
            }
            else if (error_code) {
                alert("B£¥D: " + error_code + "\n" + error);
                return;
            }

            var result = [];

            //$($.browser.msie ? data.responseText : data.responseXML).find('row').each(function () {
            $(data.responseXML).find("z\\:row, row").each(function () {
                var item = {};
                var row = $(this);
                $.each(fields, function (i, name) {
                    item[name] = row.attr('ows_' + name);
                });
                result.push(item);
            });

            if (callback)
               callback(result, status);

            //console.log('result', result);
        }
    });
};