Jquery multi-select

I am using jquery multiselect plugin http://wilkerlucio.github.com/jquery-multiselect/

Provided that the violin correctly selects the elements with the mouse, but if I / Someone loads the code and runs the provided example, then it works fine with the keyboard keys, but only the last one can be selected with the mouse.

Are there any things, some things are missing from the package, but available in the violin?