dojo 3

<!-- leading -->
            <div data-dojo-type="dijit/layout/BorderContainer" id="mainSplitter" style="width:222px;"
                 data-dojo-props="region:'leading', splitter: true, gutters: false">
                
                <div data-dojo-type="dijit/layout/ContentPane" style=" height:36px;background:#fe942c url(../resources/nav_top_bg.png) repeat-x; "
                    data-dojo-props="title:'Search', region:'top'">
                    <span class="index_nav_name thinger" id="nat-title">
                        管理菜单
                    </span>
                    <span style="width:26px;height:32px; float:right; overflow: hidden;">
                        <img alt="" src="../resources/ARROW.png" id="panelToggle" style="margin:0;height:36px;width:16px;border:none; cursor: pointer;">
                    </span>
                </div>
                <div data-dojo-type="dijit/layout/AccordionContainer" class="thinger"
                     id="leftAccordion" data-dojo-props='region: "center", splitter:true,minSize:120'>
                    <div data-dojo-type="dijit/Tree" id="myNavTree" data-dojo-id="myNavTree" store="menuStore"