var TzPagePermissions = function() {
    var oSel;
    var $select;
    var $roles;

    var init = function($) {
        oSel = document.getElementById(TzPagePermissionsData.trigger);
        if (!oSel) {
            return;
        }

        $roles  = $('#TzSpecific');
        $(oSel).change(checkSetting);

        checkSetting();
    }

    var checkSetting = function() {
        var iVal = oSel.options[oSel.selectedIndex].value;
        if (iVal == TzPagePermissionsData.focus) {
            $roles.show();
        } else {
            $roles.hide();
        }
    }

    jQuery(document).ready(init);
}();