$(document).ready(function() {
   $("a.gallery").fancybox({
        frameWidth:800,
        frameHeight:450,
        overlayOpacity: 0.5,
        zoomOpacity: true,
        imageScale: true,
        easingOut: 'easeInExpo',
        easingIn: 'easeOutExpo',
        easingChange: 'easeOutElastic',
        zoomSpeedIn: 500,
        zoomSpeedOut: 300,
        zoomSpeedChange: 500
    });
});