Category "callcc"

Is CallCC an improved version of goto?

My background is Javascript, Python & a bit of Haskell. I am trying to understand callCC, there are many explanations but I can't find them trivial & I

How to implement continuations in dynamic language like JavaScript?

I need some hits how I should go about and implement continuation for lips in JavaScript (my lisp is almost like scheme, except no continuations and TOC). Here