javascript - window.location.replace() not working in a form -

i'm trying set login form redirects user page after submitting form. neither window.location.replace(), window.location.href, or window.open() seem work , can't figure out why. checked on developer tools , gives me no error.

here's javascript:

function loginutente(){      var email = document.getelementbyid('loginemail').value;     var password = document.getelementbyid('loginpassword').value;      var utente = localstorage.getitem(email);      if( utente != null && json.parse(utente).password == password){        window.alert("login effettuato!");         window.location.replace("http:/www.google.it");     }      else{         window.alert("utente o password non corretti");     }      return false;  } 

and here's html:

        <form class="form-group" id="formlogin" onsubmit="loginutente()">              <label>email</label>         <div class="input-group">             <div class="input-group-addon"><span class="glyphicon glyphicon-user"></span></div>     <input id="loginemail" type="text" name="nome" class="form-control" placeholder="indirizzo email" required ></input>         </div>          <br>          <label>password</label>     <div class="input-group">          <div class="input-group-addon"><span class="glyphicon glyphicon-lock"></span></div>     <input id="loginpassword" type="password" name="password" class="form-control" placeholder="password" required>     </div>      </div>      <div class="modal-footer">          <button type="button" class="btn btn-default" data-dismiss="modal">close</button>     <button type="submit" class="btn btn-success" ><span class="glyphicon glyphicon-send" ></span> login</button>           </form> 

putting return false inside if not working either. google url of course placeholder url.

in form tag missed add return statement :

 <form class="form-group" id="formlogin" onsubmit="return loginutente()"> 

so, form submitted without waiting response of function. , function code not executed.