JSFiddle - React, Tailwind, and code Playground

HTML

<fieldset id="socialLogin">
                    <input data-val="true" data-val-length="Login musi mieć co najmniej 3 znaki i nie więcej jak 16" data-val-length-max="16" data-val-length-min="4" data-val-required="The Login field is required." id="socialsLoginField" name="LoginField" placeholder="Login" type="text" value="">
                    <span class="field-validation-valid" data-valmsg-for="LoginField" data-valmsg-replace="true"></span>
                    <input data-val="true" data-val-length="Hasło musi mieć co najmniej 6 znaków." data-val-length-max="32" data-val-length-min="6" data-val-required="The Hasło field is required." id="socialsPasswordField" name="PasswordField" placeholder="Hasło" type="password">
                    <span class="field-validation-valid" data-valmsg-for="PasswordField" data-valmsg-replace="true"></span>
                    <a id="socialsLogin" class="button">Rozłączony - zaloguj się</a>
</fieldset>

JavaScript

$(function() {
    $(document.body).live("click", "#socialsLogin", function() {
        alert("Alert!");
        var login = $("#socialsLoginField").val();
        var passwd = $("#socialsPasswordField").val();
        SocialsStart(login, passwd);
    });
});