anchor.diff:                  |'no translation' or '-' to specify no translation wanted.
    
             +rightcolumn
  -            if !blog.isEditable(params.right_lang)
  +            if blog && !blog.isEditable(params.right_lang)
                 .panel.panel-default
                   .panel-body #{article["markdown"+params.right_lang]}         
               else
  
positive.code:   script.
      window.onload = init;
  
      if ('#{params.edit}'=='true'  && !("#{blog.status}"=="closed")) {
          window.onbeforeunload = function(event) {
            event.returnValue = "Please use Cancel or OK to remove lock information.";
        };
  
negative.code: 
  
            
      if (params.edit && !( blog && blog.status=="closed") )
        form(name="input",id="input", action="#{layout.htmlroot}/article/#{article.id}", method="post")
          .row
            .col-md-1
  