I want to add cookie to hide form for 15 minutes after submit. I tried everything and I did nothing. I have never used cookies! I am grateful to you for yours help. It works with "localStorage" but then I can't set expire time. My question is, where do I put cookie?
<script type="text/javascript">
 $(document).ready(function (){
$('form#forma1').submit(function(e) {
    e.preventDefault();// will stop the form being submited...
    $(this).hide(1000);
    $('h3').show(1000);
   $.ajax({
                type: "POST",
                url: "povezii.php",
                data: $(this).serialize(),
                success: function(data) {
                    $('#chatbox').show();
                    $("#chatbox").append(data+"<br/>");//instead this line here you can call some function to read database values and display
                },
            });
    return false;
});
 });
    </script>
Form:
<div class="container">
<form id="forma1" class="forma1">
    <div class="col-md-6"> 
    <label name="odkoga"> From who: </label>
    <input type="text" name="odkoga" class="form-control"/> 
    <label name="zakoga"> For whom </label>
    <input type="text" name="zakoga" class="form-control"/>
    <label name="pjesmica"> Music wish: </label>
    <input type="text" name="pjesmica" class="form-control"/>
    <br>
    <input type="submit" class="btn btn-success btn-block" value="Naruci"/>
    </div>
</form>
</div>
