_changePermitFilter: function () {
        var that = this;

        var categoryNumber = this._permitFilterCategoryDropDown.value();
        var permitType = $('#' + that._viewConfig.selectors.permitFilterTypeId).data("kendoDropDownList");
        var permitTypes = [];

        switch (categoryNumber)
        {
            case "0":
                permitTypes.push(that._permitTypes[0]);
                permitTypes.push(that._permitTypes[4]);
                break;
            case "1":
                permitTypes.push(that._permitTypes[1]);
                permitTypes.push(that._permitTypes[2]);
                permitTypes.push(that._permitTypes[6]);
                permitTypes.push(that._permitTypes[7]);
                permitTypes.push(that._permitTypes[4]);
                break;
            case "2":
                permitTypes.push(that._permitTypes[3]);
                permitTypes.push(that._permitTypes[5]);
                permitTypes.push(that._permitTypes[8]);
                permitTypes.push(that._permitTypes[4]);
                break;
            default:
                permitTypes.push(that._permitTypes[4]);
                break;
        }

        permitType.setDataSource(permitTypes);
    },
    _isFilterModelEmpty: function (model) {
        var permitStatusFilter = $('#' + this._viewConfig.selectors.permitStatusMultiSelectId).data("kendoMultiSelect");
        var selectedStatuses = permitStatusFilter.dataItems();
        var isDefaultStatuses = false;

        var countDefaulted = 0;

        for (var i = 0; i < selectedStatuses.length; i++) {
            for (var j = 0; j < this._defaultStatuses.length; j++) {
                if (selectedStatuses[i].Value === this._defaultStatuses[j]) {
                    countDefaulted++;
                }
            }

            if (countDefaulted == this._defaultStatuses.length && selectedStatuses.length <= this._defaultStatuses.length) {
                isDefaultStatuses = true;
                break;
            }

        }

        if (isDefaultStatuses &&
            (model.CustomerReference == "" || model.CustomerReference == null) &&
            (model.DateApprovedFrom == "" || model.DateApprovedFrom == null) &&
            (model.DateApprovedTo == "" || model.DateApprovedTo == null) &&
            (model.ExpiryDateFrom == "" || model.ExpiryDateFrom == null) &&
            (model.ExpiryDateTo == "" || model.ExpiryDateTo == null) &&
            (model.InvoiceToId == "" || model.InvoiceToId == null) &&
            (model.PermitCategory === "" || model.PermitCategory === null) &&
            (model.PermitCountry === "" || model.PermitCountry === null) &&
            (model.PermitStatus === "" || model.PermitStatus == null) &&
            (model.PermitType === "" || model.PermitType === null) &&
            (model.RequestDateFrom === "" || model.RequestDateFrom == null) &&
            (model.RequestDateTo === "" || model.RequestDateTo == null) &&
            (model.RequestForId === "" || model.RequestForId == null) &&
            (model.Vin === "" || model.Vin === null)) {
            return true;
        } else {
            return false;
        }
    },