I only know a few JS, i can only edit already made simple script, but can`t write 'hello world' on my own. What resources do you recommend for learning ? thanks
Like any other programming language you just gotta learn the syntax, and that takes practice practice practice. I would just continue to modify other people's scripts, and if you don't understand something or if you want to know how to do something specific, google it. Javascript is a derivative of java, which is almost identical to c/c++. Once you get three or four programming languages under your belt learning a new one is just a matter of time and practice, so just keep at it.
Read some 3 year old tutorials, that method never fails. http://www.freewebmasterhelp.com/tutorials/javascript http://www.pageresource.com/jscript/ http://www.javascriptmall.com/learn/contents.htm