I get that what you're trying to do is keep it syntactically correct javascript, but just in case, have you looked at HAML [1] and/or Jade[2]? Both templating languages that allow you to write HTML in that kind of way. Even less syntax than what you're writing there.

I guess you have the overhead of the template language and rendering them though still.

[1] http://haml-lang.com/

[2] http://jade-lang.com/

EDIT: Added links.