JavaScript在IE中不能显示？

</style>
    <script language="javascript" src="./jQuery/jquery.js"></script>
    <script type="text/javascript" src="./javascript/zDrag.js"></script>
    <script type="text/javascript" src="./javascript/zDialog.js"></script>
    <script language="javascript">
        $(function(){
            $("li").find("ul").prev().click(
                function(){
                    $(this).next().toggle();
                }
            );
            $("li:has(ul)").find("ul").hide();
        });
        function applicationForm(){
            Dialog.open({URL:"./javascript/applicationform.html"});
           
        }
    </script>