Table example doesn't work

I Downloaded an example from: http://datatables.net/download/download DataTables-1.10.3

I tried to test the example to export data into file, the example is here /DataTables-1.10.3\extensions\TableTools\examples
All its ok, but the button to export doesn't work, just print button.

I don't know what is wrong, is the original example, and I tried to do other examples, its the same, the buttons doesn't work.

Someone has a functional example. Please!!!!!!!