PopupDateField to have Today button

Hi ,

I am using vaadin 7.5.6 with Valo theme . and for Date selection i am using PopupDateField class. 

When first time i click on calendar button the popupview will show the calendar of current month.
When i select some date of some old month and again click on the calendar button it shows calendar of that old month. 

is there any way that i can have button called Today which can show the popup calendar for the current date irrespective of the date which i selected previously.

Here i attached the snapshot of my requirment .

Thanks 
Nagaraj RC