javascript - event.preventDefault() doesn't work with button?

Question

Why is it .preventDefault() doesn't work or even alert() on my form?

<div id="popover-head" class="hide">Add new tab</div>
<div id="popover-content" class="hide">
    <form class="form-inline" id="myForm"  method="POST" action="../admin/FLT_add_tab.do">
    <div class="form-group">
        <!-- my form -->
        <input type="text" name="newTab"/>
        <button class="btn btn-primary" type="submit" ><i class="icon-white icon-ok"></i></button>
        <button class="btn" type="button" onClick="popRemove();" ><i class="icon-remove"></i></button>
    </div>
     </form>
</div>

The JS code:

$(document).ready(function() { 
    $('#myForm').on('submit', function(e) { 
        alert("Thank you for your comment!" + e);
        e.preventDefault();
    });
});

I don't know what am I doing wrong.

UPDATE:

link that has the popover:

<li><a href="#" id="popover"><i class="icon-plus-sign"></i> Tab</a></li>

JS that trigger the popover"

$('#popover').popover({ 
    html : true,
    title: function() {
      return $("#popover-head").html();
    },
    content: function() {
      return $("#popover-content").html();
    }
});

jsfiddle: http://jsfiddle.net/9uYuH/

Answer 1

since popover in bootstrap is dynamically generated, you should use the following jquery function

$(document).on('submit','#myform', function(e) { 
    alert("Thank you for your comment!" + e);
    e.preventDefault();
});