tree 64f8df47a4b465466d91a7d93e0c222c6454db10
parent 7e680c89ae01ca30c411f32e2e7ca1c093db0336
author Scott Main <smain@google.com> 1263332220 -0800
committer Scott Main <smain@google.com> 1263399747 -0800

docs: hide the "back to top" link when there's no vertical scroll
also use local variables for DOM objects (in a slow effort to eventually
remove all non-essential global vars)