vfl.ru(2)

// ==UserScript==
// @name     vfl.ru ctrl+arrows
// @version  1
// @grant    none
// @include  http*://vfl.ru/fotos/tag/*.html
// @include  http*://vfl.ru/fotos/camera/*.html
// ==/UserScript==

let currentPage = 1;
let locFull = document.location.href;
let loc = locFull.substr(0, locFull.indexOf("_"));
let idx = locFull.indexOf("_");
if(idx >= 0)
{
  currentPage = Number(locFull.substr(0, locFull.length - 5).substr(idx + 1));
}
else
{
  loc = locFull.substr(0, locFull.indexOf(".html"));
}
document.addEventListener("keydown",
    function(ev)
  {
    if(ev.ctrlKey && (ev.keyCode == 37 || ev.keyCode == 39))
    {
      if(ev.keyCode == 37 && currentPage > 1)
        currentPage--;
      if(ev.keyCode == 39)
        currentPage++;
      document.location=loc+"_"+currentPage+".html";
    }
    }
);