Cheatsheet bug in Forms>Submit Button and Scrollspy Header

Created by: purplemur

When clicking the Submit button in the example form, the page location is updated with a ? at the end.

When clicking the header buttons in the Scrollspy example, the location is updated with #scrollspyHeading[button number].

Both of these are causing a javascript error: Uncaught TypeError: Cannot read property 'parentNode' of null at setActiveItem (cheatsheet.js:45)

It doesn't cause any noticeable problems, but I thought it was worth mentioning.