Timer

   /**
     * Converts seconds to "MM:SS"
     * @param {float} seconds
     *      Takes seconds
     */
    var secondsToTimeString = function (seconds) {

        var s         = Math.floor(seconds % 60);
        var m         = Math.floor((seconds * 1000 / (1000 * 60)) % 60);
        var strFormat = "MM:SS";

        if (s < 10) s = "0" + s;
        if (m < 10) m = "0" + m;

        strFormat = strFormat.replace(/MM/, m);
        strFormat = strFormat.replace(/SS/, s);

        return strFormat;
    };


    /**
     * Place in update() to get total time since user has started game.
     */
    var elapsedTime = function () {
        var end       = new Date();
        var elapsedMS = end.getTime() - start.getTime();
        var seconds   = Math.round(elapsedMS / 1000);
        var minutes   = Math.round(seconds   /   60);

        nCurrentTime = seconds;
    };


    /**
     * All events occuring in Hall One are triggered from this
     */
    var eventsHallOne = function () {

    nCurrentTime = elapsedTime(); // Returns seconds
        switch (nCurrentTime) {
            case 0:
                triggerTrap(camHallOne.c21, camHallOne.c, aStills.HallOne);
                break;
            case 7:
                console.log("Time is: " + nCurrentTime)
                break;
        }
    };