$(document).ready(function() {
    
    $('#wrapper .content-area-scroll').mousemove(function(event) {
        
        var mX = event.clientX;
        var winW = window.innerWidth;
        var subMarg = (winW-990)/2;
        var xPos = subMarg-mX;
        
        $(this).css('left', xPos);
    });
    
    $('#clickme').click(function() {
        $('#book').animate({
            opacity: 0.25,
            left: '+=50',
            height: 'toggle'
        }, 5000, function() {
            // Animation complete.
            });
    });

//end document ready
});