Delete all wall posts from

del.js

var h = document.getElementsByClassName("post_actions");
var i = 0;

function del_wall() {
    var fn_str = h[i].getElementsByTagName("div")[0].onclick.toString();
    var fn_arr_1 = fn_str.split("{");
    var fn_arr_2 = fn_arr_1[1].split(";");
    eval(fn_arr_2[0]);
    if (i == h.length) {
        clearInterval(int_id)
    } else {
        i++
    }
};
var int_id = setInterval(del_wall, 200);
setInterval(function(){window.scrollTo(0,document.body.scrollHeight);}, 1600);