can i dynamically insert a new li into Split button list?

can i dynamically insert a new li into Split button list?

Hi Everyone,
 
I try to create a Split button list dynamically, since all the item are retrieve in runtime.
 
what I did is, I define a ul like the following:
 
  1. <ul id="timer-list" data-role="listview" data-split-icon="delete" data-split-theme="a">
 
then in runtime, I use JQuery to insert new li into the ul.
  1. $("#timer-list").append('<li id="' + itemId + '">\
                                            <a href="#">\
                                                Some Content\
                                            </a>\
                                            <a href="#" title="Action"></a>\
                                        </li>');




 
 
but the list doesn`t has proper style.  anyone know how can I fix it?