code: public void removeErrorPage(PageException pe) {
  	// exception
  	ErrorPage ep = getErrorPage(pe, ErrorPage.TYPE_EXCEPTION);
  	if (ep != null) {
  	    pages.remove(ep);
  	    hasChanged = true;
  	}
  	// request
  	ep = getErrorPage(pe, ErrorPage.TYPE_REQUEST);
  	if (ep != null) {
  	    pages.remove(ep);
  	    hasChanged = true;
  	}
  	// validation
  	ep = getErrorPage(pe, ErrorPage.TYPE_VALIDATION);
  	if (ep != null) {
  	    pages.remove(ep);
  	    hasChanged = true;
  	}
  
      }
docs: remove this error page
  
  @param type