How to get the selected item list from alistbox using loudev project

I am using this library http://loudev.com/#project

I have one listbox with a list of items and the other one where they are trasnferred to when I click on the first list.

However this library doesnt seem to offer a function to get all selected items from the right side listbox, and when I check the html, the LI tags are duplicated making it difficult to select the items from the right listbox.

Here is the generated code.

    <div id="ms-aloha" class="ms-container"><div class="ms-selectable"><ul tabindex="-1" class="ms-list"><li style="display: list-item;" id="-1300566143-selectable" class="ms-elem-selectable" selected=""><span>elem 1</span></li><li style="display: none;" id="-1300566142-selectable" class="ms-elem-selectable disabled ms-selected" selected=""><span>elem 2</span></li><li id="-1300566141-selectable" class="ms-elem-selectable"><span>elem 3</span></li><li style="display: none;" id="-1300566140-selectable" class="ms-elem-selectable ms-hover ms-selected"><span>elem 4</span></li><li id="-1300566139-selectable" class="ms-elem-selectable"><span>elem 5</span></li><li id="-1300566138-selectable" class="ms-elem-selectable"><span>elem 6</span></li><li style="display: none;" id="-1300566137-selectable" class="ms-elem-selectable ms-hover ms-selected"><span>elem 7</span></li><li id="-1300566136-selectable" class="ms-elem-selectable"><span>elem 8</span></li><li id="-1300566135-selectable" class="ms-elem-selectable"><span>elem 9</span></li><li id="-1662844721-selectable" class="ms-elem-selectable"><span>elem 10</span></li><li id="-1662844720-selectable" class="ms-elem-selectable"><span>elem 11</span></li><li id="-1662844719-selectable" class="ms-elem-selectable"><span>elem 12</span></li><li id="-1662844718-selectable" class="ms-elem-selectable"><span>elem 13</span></li><li id="-1662844717-selectable" class="ms-elem-selectable"><span>elem 14</span></li><li id="-1662844716-selectable" class="ms-elem-selectable"><span>elem 15</span></li><li id="-1662844715-selectable" class="ms-elem-selectable"><span>elem 16</span></li><li id="-1662844714-selectable" class="ms-elem-selectable"><span>elem 17</span></li><li id="-1662844713-selectable" class="ms-elem-selectable"><span>elem 18</span></li><li id="-1662844712-selectable" class="ms-elem-selectable"><span>elem 19</span></li><li id="-1662844690-selectable" class="ms-elem-selectable"><span>elem 20</span></li></ul></div><div class="ms-selection"><ul tabindex="-1" class="ms-list"><li style="display: none;" id="-1300566143-selection" class="ms-elem-selection ms-hover" selected=""><span>elem 1</span></li><li style="" id="-1300566142-selection" class="ms-elem-selection disabled ms-selected" selected=""><span>elem 2</span></li><li style="display: none;" id="-1300566141-selection" class="ms-elem-selection"><span>elem 3</span></li><li style="" id="-1300566140-selection" class="ms-elem-selection ms-selected"><span>elem 4</span></li><li style="display: none;" id="-1300566139-selection" class="ms-elem-selection"><span>elem 5</span></li><li style="display: none;" id="-1300566138-selection" class="ms-elem-selection"><span>elem 6</span></li><li style="" id="-1300566137-selection" class="ms-elem-selection ms-selected"><span>elem 7</span></li><li style="display: none;" id="-1300566136-selection" class="ms-elem-selection"><span>elem 8</span></li><li style="display: none;" id="-1300566135-selection" class="ms-elem-selection"><span>elem 9</span></li><li style="display: none;" id="-1662844721-selection" class="ms-elem-selection"><span>elem 10</span></li><li style="display: none;" id="-1662844720-selection" class="ms-elem-selection"><span>elem 11</span></li><li style="display: none;" id="-1662844719-selection" class="ms-elem-selection"><span>elem 12</span></li><li style="display: none;" id="-1662844718-selection" class="ms-elem-selection"><span>elem 13</span></li><li style="display: none;" id="-1662844717-selection" class="ms-elem-selection"><span>elem 14</span></li><li style="display: none;" id="-1662844716-selection" class="ms-elem-selection"><span>elem 15</span></li><li style="display: none;" id="-1662844715-selection" class="ms-elem-selection"><span>elem 16</span></li><li style="display: none;" id="-1662844714-selection" class="ms-elem-selection"><span>elem 17</span></li><li style="display: none;" id="-1662844713-selection" class="ms-elem-selection"><span>elem 18</span></li><li style="display: none;" id="-1662844712-selection" class="ms-elem-selection"><span>elem 19</span></li><li style="display: none;" id="-1662844690-selection" class="ms-elem-selection"><span>elem 20</span></li></ul></div></div>