title: how to work registerClassAlias() method for custom mxml components
body: <p>I have flex mxml custom component(Graphic).According to requirement a need to copy them as copy or cut operation.but <strong>problem in the registerClassAlias() method,how it will work for custom graphic or Group(or UIComponents) components.</strong></p>
  
  <pre><code>var className:String = getQualifiedClassName(zorder.getItemAt(0));
              _saveIn.clear();
  
              registerClassAlias(className, zorder.getItemAt(0) as Class);
              _saveIn   =     SharedObject.getLocal("save");
              _saveIn.data.value1 = new ByteArray();
              _saveIn.data.value1.writeObject(zorder.getItemAt(0));
              _saveIn.data.value1.position = 0;
              _saveIn.flush();
  </code></pre>