How to set up weekends in richfaces calendar?

I want to change next example:

http://livedemo.exadel.com/richfaces-demo/richfaces/calendar.jsf?tab=organizer&cid=1157294

to have ability to set up weekends and hollydays.

And I have q few questions:

1) why I could use data.shortDescription/data.description in the next code:

            <div>
                <h:outputText value="{data.shortDescription.escapeHTML()}" />
            </div>
            <div>
                <h:outputText value="{data.description.escapeHTML()}"/>
            </div>

Can I use something else to show the 开发者_如何学JAVAtext in the current date?

I want to add boolean isDayOff field to CalendarDataModelItemImpl, but I don't know, how I will retrieve it and show, and also save.

How can I set up or cancel weekends using richfaces Calendar (maybe using dataModel maybe not) Could anyone give me some ideas or example?

Also I need to show this new weekends with red color.

You can change the style of each day, using the dayStyleClass attribute. It should point to a javascript function, that takes an argument day and returns a css class selector. Check the "client side disable/styling" tab of the examples.