Since jQuery is very common nowadays, IntelliSense for jQuery would be a good stuff.
Google "sublime text 2 jquery" and you'll find some packages that should help you out.
Have a look at these options:
jQuery Mobile Snippets
jQuery Snippets pack
Keep an eye on this page http://wbond.net/sublime_packages/community
And do remember 'Google is your friend'
If there is functionality not provided by those options that you want or need then please provide the details so the community can help you better get to where it is you want to be
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