Kalendae is an attempt to do something that nobody has yet been able to do: make a date picker that doesn't suck. Kalendae provides the following features:

• Fully portable, no dependencies. No jQuery, no Prototype, no MooTools; just add the script and the stylesheet and you're good to go.
• Fully and easily skinable. The default theme uses only one image file (a mask for the previous and next buttons), everything else is styled using CSS.
• Supports all modern browsers and IE8.
• Support single day, multiple day, or day range selection.
• Configurable number of months to be displayed at once.
• Can be displayed on the page as an inline widget, or attached to one or more input fields as a popup control.
• Can be attached to any page element, not just named elements.
• Configurable blackouts, defined either as an array of dates or via a callback function
• Output selected dates in a variety of formats
• Leverages moment.js for smart and easy date parsing.