With 'Image Today', you can schedule when to display pictures as well as rotate a set of pictures to display according to specific dates.
You can schedule pictures to display on a specific day, month, or even minutes! Also, it has the ability to change pictures within a giving time period or specific dates and minutes. This applet would be great for changing background "automatically" for a calendar or any time sensitive applications. This can automate the task of updating pictures on your site.
Image Today Java Applet -Single License Related Software: