function adder(user,list,add,st) {
    var o = user;

    o[6] = parseInt(o[6]);

    add ? (o[6] & 1 << list || (o[6] += 1 << list)) : (o[6] & 1 << list && (o[6] -= 1 << list));

    setTimeout(function () {
        ajax.post("al_friends.php", {
            act: "save_cats",
            uid: user[0],
            cats: o[6],
            hash: cur.userHash
        }, {
            onDone: function(){
                var el=document.querySelector(".left_label.inl_bl");
                el.innerHTML=el.innerHTML>=1?(el.innerHTML-0)+1:1;
            }
        });
    },st||0);
}

function itr(list,add){
    function fn(start){
        for(var i=start||0,len=cur.friendsList.all.length;i<len;i++){
            adder(cur.friendsList.all[i],list,add,i*50);
        }
    }
    fn();
}