anchor.diff:  
           }
         onchangeCollection();
  +
  +      comm = document.getElementById("comment");
  +      if (comm) {
  +        comm.onchange = onchangeComment;
  +        comm.onkeyup = onchangeComment;
  +        }
  +      onchangeComment();
  +      onchangeLEFT();
  +      onchangeRIGHT();
  +
       }
   
       function onleaveLEFT() {
  
positive.code:         }
        }
      function onchangeRIGHT() {
        var mdEN = document.getElementById("markdownRIGHT").value;
        previewRIGHT = document.getElementById("previewRIGHT");
        textRight = document.getElementById("text_right");
        textLeft = document.getElementById("text_left");
        
        previewRIGHT.innerHTML = convert(mdEN);
        var longLink = mdEN.search(/\[[^\]]{40,}\]/g);
        if (longLink>=0) {
  
negative.code:         
  
                 }
        function onchangeComment() {
          FitToContent("comment");
        }
  
        function FitToContent(id, maxHeight)
        {
           textfield = document.getElementById(id);
           if ( !textfield )
              return;
  
  
           textfield.style.height = textfield.style.minHeight;
           var adjustedHeight = textfield.clientHeight;
           
  
           if ( !maxHeight || maxHeight > adjustedHeight )
           {
              adjustedHeight = Math.max(textfield.scrollHeight, adjustedHeight);
              if ( maxHeight )
                 adjustedHeight = Math.min(maxHeight, adjustedHeight);
            
              if ( adjustedHeight > textfield.clientHeight ) {
                
                 textfield.style.height = adjustedHeight + "px";
                 
  
                }
           }
        }
  
  
  
  
  
  