[FIX] SYLV module: Try and get the jquery-ui tabs mode to cope better with several tabs (not perfect but optimised for 4, 5 or 6 tabs which is often the case)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@50585 b456876b-0849-0410-b77d-98878d47e9d5