title: What do I need to use the DatePicker class in Wicket 1.4.10?
body: <p>Im using Netbeans 7.1, Wicket 1.4.10 with Wicket extension 1.4.10. </p>
  
  <p>I want to use the datePicker, but Netbeans are not able to identify DatePicker as a class. I have searched the library and cant find it ither. Do I need to add som aditional libraries to be able to use the datePicker component? And if so, will I need to install it in som way? The extension I use now is just added usng the tools-librarymanager. Is this the correct way/installation?  </p>