jqGrid TableDnD issue

jqGrid TableDnD issue

I created a table using jqGrid Plugin for jQuery and relying on following
demo, I want to drag and drop the rows of my table. Demo:
http://trirand.com/blog/jqgrid/jqgrid.html (New in version 3.3 -> Row Drag
and Drop)
When I try to drag a row, I get the error "TypeError: e is null" in
firebug. I searched for a solution to this problem but I didn't find
anything in this case... Moreover I tried to use the same version of
jQuery and jQueryUI as shown in the example above, but it doesn't fix the
problem. The new release of jQuery TableDnD (version 0.7) was not helpful,
too Any idea to fix this problem?
My code:
<script type="text/javascript" src="js/jquery-1.9.1.js"></script>
<script type="text/javascript" src="js/jqueryUI-1.10.3.js"></script>
<script type="text/javascript" src="js/jquery.ui.datepicker-de.js"></script>
<script type="text/javascript"
src="js/jqGrid/i18n/grid.locale-de.js"></script>
<script type="text/javascript" src="js/jqGrid/jqGrid-4.5.2.js"></script>
<script type="text/javascript" src="js/plugins/jqTableDnD-0.5.js"></script>
<link type="text/css" rel="stylesheet"
href="css/cupertino/jquery-ui-1.10.3.css"/>
<link type="text/css" rel="stylesheet" href="css/ui.jqgrid.css" />
<link type="text/css" rel="stylesheet" href="css/ui.multiselect.css" />
<table id="grid"></table>
<div id="navi"></div>
<script type="text/javascript">
$(document).ready(function() {
$("#grid").tableDnD({scrollAmount:0});
$("#grid").jqGrid({
colNames:["Artnr", "Bezeichnung", "Angebot (Position)",
"Enddatum Startseite", "Eigener Bestand", "Versandlager
Bestand"],
colModel:[
{name:"artnr", index:"artnr", align:"center", width:75,
sortable:false, formatter:formatPic},
{name:"benennung", index:"benennung", width:400,
sortable:false, formatter:formatLink }
...
],
datatype: "json",
editurl: "edit.php",
height: "auto",
mtype: "POST",
pager: "#navi",
rowNum: 20,
sortname: "angebot",
sortorder: "asc",
url: "load.php",
viewrecords: true,
gridComplete: function() {
$("#_empty","#grid").addClass("nodrag nodrop");
$("#grid").tableDnDUpdate();
}
}).navGrid ('#navi',
{view:false,edit:false,add:false,del:true,search:false}, {}, {},
{}, {}, {} )
});
function formatPic(cellVal, options, rowObject) {
return "<htmltag title=\""+ cellVal +"\" class=\"tooltip\">"+
cellVal +"</htmltag>";
}
function formatLink(cellVal, options, rowObject) {
return "<a href=\"../details.php?art=" + rowObject[0] + "\"
target=\"_blank\">"+ cellVal +"</a>";
}
</script>
Thanks in advance!