Any ideas on how to make the clones draggable?

            $("#draggable").draggable({
                helper: 'clone',
                cursor: 'pointer',
            });

            $("#snaptarget").droppable({
                drop: function(event, ui) {
                       var randomnumber = Math.floor(Math.random()*1000000);
                       var newId = '#draggable_'+randomnumber;

                        $(ui.helper).clone(true).removeAttr('id').attr('id',newId).appendTo('#snaptarget');                     
                        $(newId).draggable();                   
                }
            });

$(newId).draggable(); does not work.