code: function(ticks) {
              var key,
                  tickArray = [];
  
              for(key in ticks) {
                  if(ticks.hasOwnProperty(key)) {
                      tickArray.push(ticks[key]);
                  }
              }
              tickArray.sort(function(t1, t2) {
                  return (t1.pos - t2.pos);
              });
              return tickArray;
          }
docs: returns the ticks in an array in ascending order by 'pos'