JS script to like every loaded post on https://vk.com

VK_liker.js

function shuffle(o) {
    for(var j, x, i = o.length; i; j = Math.floor(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
    return o;
};
var workArray = shuffle(document.querySelectorAll('.like_btn.like:not(.active)'));

var curTaskElement = 0;
function triggerCurElement() {
    if (curTaskElement >= workArray.length) {
        console.log("Всё!");
        return true;
    };
    var rand = Math.floor(Math.random() * (4100 - 1550 + 1)) + 1550;
    workArray[curTaskElement].click();
    setTimeout(function() {
        curTaskElement++;
        if (document.querySelectorAll(".box_body .captcha").length) {
            var me = document.querySelectorAll(".box_body .captcha").parent().parent().find(".box_controls_wrap .button_blue");
            me.click(function() {
                triggerCurElement();
            });
            return false;
        }
        triggerCurElement();
    }, rand);
}
triggerCurElement();