(function (){
    //list of tips
    var items = [
        "You can pin participants by clicking on their thumbnails.",// jshint ignore:line
        "You can tell others you have something to say by using the \"Raise Hand\" feature",// jshint ignore:line
        "You can learn about key shortcuts by pressing Shift+?",// jshint ignore:line
        "You can learn more about the state of everyone's connection by hovering on the bars in their thumbnail",// jshint ignore:line
        "You can hide all thumbnails by using the button in the bottom right corner"// jshint ignore:line
    ];

    /**
     * Creates a randomiser.
     * Put in in Global scope
     */
    window.randomizer = {
        /**
         * Get a random integer between 0 and items length.
         *
         * @return {string} a random integer
         */
        getItem: function (){
            var l = items.length - 1;
            var n = Math.round(Math.random() * l);

            return items[n];
        }
    };
})();