handle multi page albums

![http://25.media.tumblr.com/863a6ffb830d92bafc403c583dad43ff/tumblr_mfk9yenZJP1qfkqupo1_500.gif](http://25.media.tumblr.com/863a6ffb830d92bafc403c583dad43ff/tumblr_mfk9yenZJP1qfkqupo1_500.gif)