var checkRegisterForm = function () {

    var username = document.getElementById("username");

    var password = document.getElementById("password");

    var password2 = document.getElementById("password-2");

    var nameTure = /^[\w]{3,10}$/;

    var paw = /^[\d]{6,20}$/;

    return nameTure.test(username.value) && paw.test(password.value) && paw.test(password2.value) && (password.value = password2.value);

    }