El Goonish Shivve Navigation Improvements

Arrow keys do movement, and clicking the image goes to next comic.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        El Goonish Shivve Navigation Improvements
// @description Arrow keys do movement, and clicking the image goes to next comic.
// @namespace   http://userscripts.org/users/Scuzzball
// @include     http://www.egscomics.com/?date=*
// @version     1.0
// ==/UserScript==

if(typeof document.getElementsByClassName("m_comic_nav")[0].childNodes[3].href != "undefined") { //If there is a nav prev
    var navPrev = document.getElementsByClassName("m_comic_nav")[0].childNodes[3].href;
}else{
    var navPrev = "";
}


if(typeof document.getElementsByClassName("m_comic_nav")[0].childNodes[7].href != "undefined") { //If there is a nav next
    var navNext = document.getElementsByClassName("m_comic_nav")[0].childNodes[7].href;
}else{
    var navNext = "";
}


document.getElementsByClassName("comic2")[0].innerHTML = "<a href=\"" + navNext + "\">" + document.getElementsByClassName("comic2")[0].innerHTML + "</a>";


function leftArrowPressed() {
   window.location = navPrev;
}

function rightArrowPressed() {
   window.location = navNext;
}

document.onkeydown = function(evt) {
    evt = evt || window.event;
    switch (evt.keyCode) {
        case 37:
            leftArrowPressed();
            break;
        case 39:
            rightArrowPressed();
            break;
    }
};