Plans has several downloadable themes available based on CSS-based layouts which makes it easy to match the colors and fonts with your website. Plans can store data in flat files or an SQL database.

I looked at close to 100 calendar scripts and liked this one the best. It loads fast, and doesn't take hours to figure out how to use. I installed a calendar program one time, and got tired trying to learn all of the features that I had no use for... which is one of the main complaints I had about some of the scripts I looked at. Plans is really easy to use.

One of the things I liked about it was the right click option to add an event. No complications here. Just right click on the date you want to add an event to and you're there. You can aslo assign different background colors and icons, for fun or to show prioities.

When you click on a date a popup comes up to show you the event. If you want to print it you can choose Ctrl+P and it prints off perfectly without the background color or layout. The stylesheet is for media=screen so the when it is printed the color and layout is ignored.

Plans is licensed under the GPL. You can freely modify the code for your needs.