There are a lot of Ajax Calendars out there, but actually only a few can be very customizable to fit anyone's need. That's why we have created a Calendar Component that is very customizable and extendable. You can see our Calendar at work right in this page. There are tons of features in this calendar package, such as

• Create any numbers of months per calendar.
• Set the weekend, days off, holidays (dates off), start day of the week.
• Start and end date.
• Multi selection with limits or without.
• Skinnable (using CSS).
• Can have any number of calendars in any page.
• Optimized for best performance.