VK chat bot clicker

VKClicker.js

var clicker_button = document.getElementsByClassName("Keyboard")[0].getElementsByClassName("Button")[0],
    clicker_count = 100000,
    clicker_delay = 2000;

function botClick() {
    clicker_button.click();
    if (--clicker_count) {
        setTimeout(botClick, clicker_delay);
    }
}
botClick();