JavaScript window.location.href not working in localhost

Question

I have a problem with my website. When there is "333" in the input box (id textbox_text) website is supposed to redirect to the specified url, but instead nothing happens. Where is the problem?

    <script>
            function IsEmpty()
            {
            if(document.forms['frm'].textbox_text.value == "333")
             {
                window.location.href="martyna-lesniak.html";
            }
            else 
            {
                alert("Nieprawidłowe hasło!");
            }
        }
    </script>
    <div class="container">
        <form name="frm">
            <input type="password" name="password1" class="password-input" id="textbox_text" placeholder="Wpisz hasło">
            <input type="submit" name="submit" onclick="return IsEmpty();" value="Wysyłaj" class="button-input" />
        </form>
    </div>

Answer 1

You just have to return false; after your call to window.location.href="martyna-lesniak.html";.