CQ.Util.build....

I try to build form with CQ.Util.build:

<script type="text/javascript"> CQ.Util.build({ "xtype":"panel", "border":false, "items":[ { "xtype":"richtext", "name":"someName", "rtePlugins": { "image": { "features":"*" } } } ], "renderTo":"<%= id %>_fields_wrap" }); </script>

..but now I can't drag drop images to editor from content finder. Who knows how can I to do it??