[jQuery] submit buttons added to form don't work

[jQuery] submit buttons added to form don't work


Hello Group,
This is my first post to the group and I am pretty new to the jquery
and I have just come up against a slight problem that I can't resolve
so any help would be greatly appreciated.
I have a small form that when the submit button is clicked gets the
form input saved to a database via xmlhttprequest, when i get the
call back from the server i then inject new buttons to the bottom of
the form so the previous settings can be updated, however my problem
is that even though I can see and click on the newly added buttons
when i click on them nothing happens at all not even a click event.
What am i doing wrong?
$('#panal_add').click(function(){
    $("form").bind("submit", function() { return false; })
    //get the form data to be passed to the php file
     $.get("update.php",
         {form varables},
            function(data)
             {
                 //inject different form submit buttons in to the div element
                var buttons = document.getElementById("buttons_div");
                buttons.innerHTML = "
                <input type='submit' name='panal_update' value='Update Details'
id='panal_update' class='bttn' />
                <input type='submit' name='details_delete' value='Delete Panal'
id='panal_delete' class='bttn' />
                </form>";
             }
        );
})
$('#panal_update').click(function(){
    alert("hello");
})