doc.scrollTop is not a function

Hi Developers!
I download last version jQuery UI. Include lib. to my page. And try
open a modal-dialog. But I get error in ui.dialog.js "doc.scrollTop is
not a function".
this is line 364 in ui.dialog.js.
...
_position: function(pos) {
        var wnd = $(window), doc = $(document),
            pTop = doc.scrollTop(), pLeft = doc.scrollLeft(),
            minTop = pTop;
...
<script src="/js/jquery-1.3.2.js" type=text/javascript></script >
<script src="/js/ui.core.js" type="text/javascript"></script>
<script src="/js/ui.dialog.js" type="text/javascript"></script>
<script src="/js/ui.draggable.js" type="text/javascript"></script>
<script src="/js/ui.resizable.js" type="text/javascript"></script>
<script src="/js/jquery.bgiframe.min.js" type="text/javascript"></
script>
....call from link on page ....
$("#dlgPdfReport").dialog({
     bgiframe: true,
        modal: true
    });
What can be wrong ? Thanks.