ssreevidya.m Light Poster

I have a listbox with databinding . It has more then 15 items .

And I need to auto scroll to the selected item may be item 10 in the code file
I used a jQuery like

<script type="text/javascript" language="javascript">
         function LstFocus() {
             $('#<%= LstBoxClasType.ClientID %>').find(':selected').filter(':first').focus().attr("selected", true);


But it work in mozilla firefox only and not not work in IE.
How can I do that ?

Thanks in advance.