anchor.diff:          content: "";
           height: 20px;
           width: 20px;
  -        /*padding: 2px;*/
           margin: 5px;
           border-radius: 20px;
           -moz-border-radius: 20px;
  
positive.code:     }
  
      .topic-number, .topic-name {
          margin-top: 1px;
          padding: 5px;
      }
      .topic-number {
  
negative.code:             cursor: 'move',
              revert: 'invalid',
              helper: "clone"
          }).on("click", function(event){
              event.preventDefault();
              addTopicToSelectedList(jQuery(this));
          });
  
          function addTopicToSelectedList(topic) {
              var topicId = topic.attr('topic-id');
              if(jQuery(".selected-list").find("li[topic-id='" + topicId + "']").length == 0) {
                  if(jQuery(".selected-list").children().length < selectedList_limit){
                      var link = jQuery("<div class='dismiss'>" +
                                          "<a href='#' title='Remove bid'>" +
                                              '<%= image_tag ('delete_icon.png') %>' +
                                          "</a></div>");
                      var list = jQuery("<li class='topic'></li>").html(topic.html());
                      jQuery(list).attr('topic-id', topicId);
                      jQuery(list).find('div.topic-content-wrapper').prepend(link);
                      jQuery(list).appendTo(".selected-list");
                  } else {
                      alert('Maximum number of bids reached. Please remove any bid to continue with subsequent bids.');
                  }
              } else {
                  alert('You have already bid for this topic. Please choose a different topic.');
              }
          }
  
          jQuery(".selected-list").droppable({
              addClasses: false,
  