source: Dev/trunk/src/client/dojox/layout/tests/_floating.html

<div class="wrap">
        <h3>I am FloatingPane</h3>
        <p>Windows in the Browser is weird UI, but sometimes useful. Even more useful:<br>
        <br>
        <button dojoType="dijit.form.Button">
                Dock To Tab
                <script type="dojo/method" data-dojo-event="onClick">
                        this.setAttribute("disabled",true);
                        var c = dijit.getEnclosingWidget(this.domNode.parentNode);
                        dojo.style(c.focusNode,"display","none");
                        dojo.style(c.domNode,{
                                position:"relative",
                                top:"0",
                                left:"0"
                        })
                        var tab = dijit.byId("centerPane");
                        tab.addChild(c);
                        tab.selectChild(c);
                </script>
        </button>
        <br>
        <button dojoType="dijit.form.Button">
                Dock To Accordion
                <script type="dojo/method" data-dojo-event="onClick">
                        this.setAttribute("disabled",true);
                        var n = dijit.getEnclosingWidget(this.domNode.parentNode);
                        dojo.style(n.focusNode,"display","none");
                        dojo.style(n.domNode,{
                                position:"relative",
                                top:"0",
                                left:"0"
                        })
                        var c = new dijit.layout.ContentPane({
                                title:n.title,
                                closable:n.closable
                        });
                        c.startup();
                        c.setContent(n.containerNode);
                        var accordion = dijit.byId("rightAccordion");
                        accordion.addChild(c);
                        accordion.selectChild(c);
                </script>
        </button>
        <br><br>
        (both technically unsupported)
        </p>

</div>