public String getServiceIcon(Integer idService) {
        String s;
        if (idService == 1) {
            s = "brightness-contrast";
        } else if ((idService > 1) && (idService < 7)) {
            s = "lock";
        } else if (idService == 7) {
            s = "phone";
        } else if (idService == 8) {
            s = "phone";
        } else if (idService == 9) {
            s = "lightning-3";
        } else if (idService == 10) {
            s = "lightning";
        } else {
            s = "";
        }
        if (s.length() > 0) {
            s = "<span aria-hidden=\"true\" class=\"icon-" + s + "\"></span>";
        }
        return s;
    }