[1.0.X] Fixed #10538: use a prefix for HTML ids on the admin doc page to avoid...

[1.0.X] Fixed #10538: use a prefix for HTML ids on the admin doc page to avoid conflicts with existing elements. Thanks, Justin Lilly. Backport of r10343 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@10344 bcc190cf-cafb-0310-a4f2-bffc1f526a37