Get specific part of url of a link

Question

I want to get a specific part of a url between the third and fourth slashes of a link on the page.

EDIT: Sorry I don\'t think I was clear the first time, I meant get

Answer 1

var getSegment = function (url, index) {
   return url.replace(/^https?:\/\//, '').split('/')[index];
}

Usage:

getSegment("http://domain.com/a/b/c/d/e", 4); // "d" 

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The replace makes sure that the first two slashes after the protocol (http or https) don't count.