using dblclick on a selected paragraph ?

using dblclick on a selected paragraph ?

I am using 'selectable' to select an item in a paginated :

$("#selectable").selectable();

I'd like to be able to double-click on the the selected element, but it doesn't work :

$("p.ui-selected").dblclick( function() { alert("Hello"); } );


here is the html code 

<div id="user-list">
      <div id="selectable" style="display: block;" class="ui-selectable">
            <p class="ui-state-default ui-selectee ui-selected">
              Isabel
            </p>
       </div>
</div>

any clue ?

note : 
$("p").dblclick( function() { alert("Hello"); } );
works well obviously on all <p> ...