Examples:
skipPrev(30, '.class') //skip previous 30 elements with class = .class
skipPrev('.class') //skip all the previous elements with class = .class
skipNext(30, '') //skip next 30 elements
skipNext('#id') //skip all the next elements with id = #id
Examples:
skipPrev(30, '.class') //skip previous 30 elements with class = .class
skipPrev('.class') //skip all the previous elements with class = .class
skipNext(30, '') //skip next 30 elements
skipNext('#id') //skip all the next elements with id = #id