This Great unobtrusive Cross-browser DatePicker called DateChooser was created by Yellow5.
The DateChooser advantage:
- The HTML for the calendar is standards-compliant.
- The calendar appears in the same window as the input field(s). It doesn’t annoyingly pop up in a new window.
- It has no hard-coded styles; apply your own .css file to customize DateChooser’s appearance.
- Return values are flexible, using patterns borrowed from PHP’s date() function.
- It doesn’t pollute the global namespace.