added helper to encapsulate JavaScript-only blocks of content (closes #729 - patch from msquire)
added helper to encapsulate JavaScript-only blocks of content (closes #729 - patch from msquire)

git-svn-id: 2f0e1b834f829f9d45d4005679b0d62d953a4cdf@1614 4396de85-42e0-4213-a939-0f47b466bcdf

morhekil/symfony,morhekil/symfony,morhekil/symfony