The only markup required by Calendar is an initial empty DIV into which the Calendar will be rendered. The DIV should have a unique id specified in the markup, which will match the id passed to the Calendar's constructor.
The markup for our simple Calendar example looks like this:
Finally, the Calendar can be instantiated in a script block, like this:
Note that to avoid using the global variable space, we are placing our example Calendar's variable into the YAHOO.example.calendar namespace (see line 2 above). For more information about namespacing, see the YAHOO Global object.
The constructor in our example (line 5) takes two arguments: the id to be used for our new Calendar's inner container DIV ("cal1" in this example) and the id of the inital container where we want to render the Calendar ("cal1Container" in this case).
We are also specifying that the init() function should not be executed until the window has loaded, using the Event Utility.