((IDOMModel) model).getFactoryRegistry().addFactory(
CSSStyleAdapterFactory.getInstance());
// _viewer.getDestDocumentForDesign().getModel().getFactoryRegistry().addFactory(CSSStyleAdapterFactory.getInstance());
((IDOMModel) model).getFactoryRegistry().addFactory(
new PageVariableAdapterFactory());
doc.addAdapter(new DocumentPageVariableAdapter(doc));
_viewer.setContents(((IDOMModel) model).getDocument());
} else {
_viewer.setContents((EditPart) null);
}