anchor.diff:                  .col-md-10
                     p(id="categoryDisplay" style={color:'Gray'})
                   .col-md-2
  -                    input(type="submit", class="btn btn-primary",value="OK")
  +                    input(type="submit", id="OK",class="btn btn-primary",value="OK")
                       a(href="#{layout.htmlroot}/article/searchandcreate?edit=false" class="btn btn-default" role="button") Cancel
   
               
  
positive.code:       categoryDisplay = document.getElementById("categoryDisplay");
        categoryEN = document.getElementById("categoryEN");
        categoryEN.onchange = onchangeCategory;
        onchangeCategory();
      }
  
  
negative.code:       if (placeholder[c]) {
           categoryDisplay.innerHTML = placeholder[c];    
          }
      }
  
      function onchangeTitle() {
        var t = title.value;
        okButton.disabled=true;
        if (t.length>5) okButton.disabled=false;
      }
     
   
  