function Week1()
{
    this.controller = null;
}

Week1.prototype.execute = function( controller, whereSheLeftThings )
{
    this.controller = controller;
    console.log('Executing week 1 animation');

    // ANIMATE ITSELF

    // ALL DONE!
    this.controller.setComplete();
}

// ---

function Week2()
{
    this.controller = null;
}

Week2.prototype.execute = function( controller, whereSheLeftThings )
{
    this.controller = controller;
    console.log('Executing week 2 animation');

    // ANIMATE ITSELF

    // ALL DONE!
    this.controller.setComplete();
}

// --- ----------------------------------------------------------------------

function AnimationController()
{
    this.queue              = [];
    this.animIsRunning      = false;
    this.whereILeftThings   = null;
}

AnimationController.prototype.setComplete = function( whereILeftThings ) {
    this.whereILeftThings = whereILeftThings;

    this.animIsRunning = false;
}

AnimationController.prototype.run = function( animation )
{
    this.queue.push( animation );

    var scope = this;
    setInterval(function() {
        if ( !scope.animIsRunning && (scope.queue.length > 0) ) {
            var nextAnimation = scope.queue.shift();
            console.log( 'About to run a new animation', nextAnimation );

            scope.animIsRunning = true;
            animation['execute'].call( scope, scope, scope.whereILeftThings );
        }
    }, 500);
}

$(document).ready(function() {

    var animController = new AnimationController();

    var wk1 = new Week1();
    var wk2 = new Week2();

    animController.run( wk1 );
    animController.run( wk2 );
});