responsive menu broken on live preview

[tophopstop]

when I look at the live preview on the desktop, and reduce browser width enough to collapse the menu, the resulting menu button does nothing. in mobile browser, its broken similarly out of the gate.

http://jquery-ui-bootstrap.github.io/jquery-ui-bootstrap/index.html

browsers effected:

• Desktop:
  • Chrome Linux (35.0.1916.153)
  • Firefox Linux (30.0)
• Mobile:
  • Safari (iOS 7.1.2, webkit 537.51.2)
  • Chrome iOS (36.0.1985.49)