public DocumentationForm openDocumentation(String filename){
try {
DocumentationForm doc = new DocumentationForm(this, folder, SWT.NONE);
if (doc.open(filename, filelist)) {
//CTabItem tab = newItem(doc, doc.getFilename());
newItem(doc, doc.getFilename());
// tab.setImage(ResourceManager.getImageFromResource("/sos/scheduler/editor/editor-small.png"));
return doc;
} else