2 problems with async tree (href and expand)

2 problems with async tree (href and expand)

Hi,
i'm new in jquery and my english is not the best :o(
Ich hope you understand what i mean.

I used jquery and treeview to make a sample file to test this.
When i click on a node, it should open a new url, so i append the href parameter, but when i click on a node it opens the subfolder, but not the new url.

My second problem is, that when i add the expand parameter jquery opens the node, but only shows "placeholder", when i close the node and open it manualy, everything looks fine.

To you have an idea wheres the problem?
Sorry for my bad english :o(

The Frame   
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
    <script src="../jquery.treeview.js" type="text/javascript"></script>
    <script src="../jquery.treeview.async.js" type="text/javascript"></script>
   
    <script type="text/javascript">
   
    $(document).ready(function(){
        $("#black").treeview({
        persist: "location",
        collapsed: true,
        unique: true,
        url: "source.cfm"

<!---            <cfoutput>url: "/cfc/tree.cfc?lng=de&method=getLinkCategoriesForExtTree&oldpath=#url.oldpath#"</cfoutput>--->
           
        })
    });
    </script>
   
    </head>
    <body>

    <h1 id="banner"><a href="http://bassistance.de/jquery-plugins/jquery-plugin-treeview/">jQuery Treeview Plugin</a> Demo</h1>
    <div id="main">
   
    <ul>
        <li><a href=".">Main Demo</a></li>
        <li><a href="source.phps">Server component used</a></li>
    </ul>
    <div id="treecontrol">
    <a title="Collapse the entire tree below" href="#"><img src="../images/minus.gif" /> Collapse All</a>
    <a title="Expand the entire tree below" href="#"><img src="../images/plus.gif" /> Expand All</a>
    <a title="Toggle the tree below, opening closed branches, closing open branches" href="#">Toggle All</a>
</div>   
    <h4>Lazy-loading treed</h4>
       
    <ul id="black">
    </ul>
   
       
</div>
 

A sample for source.cfm
[{"hasChildren":true,"text":"asdfasdfasd 54","id":54,"expanded":true,"href":"http:\/\/www.xy.de"}]

Thanks a lot.
Carsten