var direction_bans_mov = 1;
var ban_num = 0;
var pixs_to_move_middle_bans = '+=450px';

function middle_bans_move() {

    if (ban_num == 5) { pixs_to_move_middle_bans = '-=450px'; direction_bans_mov = -1; $("#btnRightBans").hide(); };
    if (ban_num == 0) { pixs_to_move_middle_bans = '+=450px'; direction_bans_mov = 1; $("#btnLeftBans").hide(); };
    $("#stripImg").animate({ right: pixs_to_move_middle_bans }, 1000);
    setTimeout("middle_bans_move()", 10000);

    ban_num += direction_bans_mov;
};