[AUCTeX] is it possible to insert such a symbol?

[peng shao]

Hi everyone, I just moved from vim+latex-suite to emacs+auctex, so I am really 
a newbie on this combination. I remember in latex-suite there is a function such 
that if you input $$, then you should get

$your cursor here$<++>
and by pressing ctrl+j you can move your cursor to the position <++>.

In texworks, there is even a more convenient way to realize this: texworks inserts
a 'dot'(unicode 0x2022) at a proper position and by pressing ctrl+tab one can be leaded
there.

I did not read the manual of auctex carefully(sorry for that), but I wonder if
it is possible to make auctex to realize such function, it is really convenient for me.

Thank you.