code: function(newDiv){
          if(container.opt.displayOrientation){
            if(this.forward()){
              newDiv.classList.add('bam_forward');
            }else{
              newDiv.classList.add('bam_reverse');
            }
          }
        }
docs: /* displayBases: false,
  displayOrientation: false,
  display_cigar:false,
  display_mate_missing: false