Image loading

git-svn-id: https://plugins.svn.wordpress.org/page-showcaser-boxes/trunk@776022 b8457f37-d9ea-0310-8a92-e5e31aec5664
Add Ajax image loading

git-svn-id: https://plugins.svn.wordpress.org/page-showcaser-boxes/trunk@776023 b8457f37-d9ea-0310-8a92-e5e31aec5664