Description:
This script uses DHTML or Popup windows to display a calendar for the user to select a date. It was designed to look and behave like Microsoft Outlook.
It can be implemented in only a few lines of code, yet also provides customization options to make it work correctly in any country's display format, etc.
Note: Why are form elements or <SELECT> boxes showing over top of the DIV-style calendar popup? It's not a bug in the javascript - it's a bug/feature of browsers. See this explanation by WebReference.

Example:
Below are multiple examples of the CalendarPopup in use. Each is slightly different to show different capabilities of the script.
Click the "Show Source" links for each example to see how it was done, and hover over the "Select" links to see how they are coded. Or view the source of the entire page!

Also provided a The Simplest Possible Implementation Of A Calendar Popup

Click here for the real link