mb.bgndGallery demo
            This background gallery is applied to the body
            
            and uses one of the default built in effect: "blur".
            You can create a custom transition as for example using the CSS3 transform: scale() property:
            effect:{enter:{transform:"scale("+(1+ Math.random()*2)+")",opacity:0},exit:{transform:"scale("+(Math.random()*2)+")",opacity:0}}
            
            
            As you can see, resizing the browser window the image will resize and center to always fit the screen.
            
            You can use the left/right arrow and the space bar (pause/play) keys to navigate the gallery.
        
pause
            play
            prev
            next
            
            fullscreen
            change gallery
        All the Photos are right reserved. 
c 2013 - ∞ Matteo Bicocchi