code: protected void initContentCheck() {
  
          Object o;
          if (CmsStringUtil.isEmpty(getParamAction()) || CmsDialog.DIALOG_INITIAL.equals(getParamAction())) {
              // this is the initial dialog call
              o = null;
          } else {
              // this is not the initial call, get module from session
              o = getDialogObject();
          }
  
          if (!(o instanceof CmsContentCheck)) {
              // create a new content check object
              m_contentCheck = new CmsContentCheck(getCms());
  
          } else {
              // reuse content check object stored in session
              m_contentCheck = (CmsContentCheck)o;
          }
      }
docs: Initializes the content check object or takes an exiting one which is stored in the sesstion.<p>