trackInfo = 
[
   {
      "args" : {
         "chunkSize" : 20000
      },
      "url" : "data/seq/{refseq}/",
      "type" : "SequenceTrack",
      "label" : "DNA",
      "key" : "DNA"
   },
   {
      "url" : "data/tracks/{refseq}/conservation.json",
      "type" : "ImageTrack",
      "label" : "conservation",
      "key" : "Conservation"
   },
   {
      "url" : "data/tracks/{refseq}/gene/trackData.json",
      "type" : "FeatureTrack",
      "label" : "gene",
      "key" : "Gene Span"
   },
   {
      "url" : "data/tracks/{refseq}/mRNA/trackData.json",
      "type" : "FeatureTrack",
      "label" : "mRNA",
      "key" : "mRNA"
   },
   {
      "url" : "data/tracks/{refseq}/chromosome_band/trackData.json",
      "label" : "chromosome_band",
      "type" : "FeatureTrack",
      "key" : "Cytological band"
   },
   {
      "url" : "data/tracks/{refseq}/tRNA/trackData.json",
      "type" : "FeatureTrack",
      "label" : "tRNA",
      "key" : "tRNA"
   },
   {
      "url" : "data/tracks/{refseq}/noncodingRNA/trackData.json",
      "type" : "FeatureTrack",
      "label" : "noncodingRNA",
      "key" : "Non coding RNA"
   },
   {
      "url" : "data/tracks/{refseq}/transposable_element/trackData.json",
      "label" : "transposable_element",
      "type" : "FeatureTrack",
      "key" : "Natural transposon"
   },
   {
      "url" : "data/tracks/{refseq}/transposable_element_insertion_site/trackData.json",
      "label" : "transposable_element_insertion_site",
      "type" : "FeatureTrack",
      "key" : "Transgene insertion site"
   },
   {
      "url" : "data/tracks/{refseq}/orthologFB/trackData.json",
      "type" : "FeatureTrack",
      "label" : "orthologFB",
      "key" : "Ortholog (FlyBase)"
   },
   {
      "url" : "data/tracks/{refseq}/cDNA/trackData.json",
      "type" : "FeatureTrack",
      "label" : "cDNA",
      "key" : "cDNA and Aligned genomic sequences"
   },
   {
      "url" : "data/tracks/{refseq}/oligo/trackData.json",
      "label" : "oligo",
      "type" : "FeatureTrack",
      "key" : "Oligonucleotides"
   },
   {
      "url" : "data/tracks/{refseq}/BAC/trackData.json",
      "type" : "FeatureTrack",
      "label" : "BAC",
      "key" : "Tiling BAC"
   },
   {
      "url" : "data/tracks/{refseq}/protein_binding_site/trackData.json",
      "label" : "protein_binding_site",
      "type" : "FeatureTrack",
      "key" : "protein binding site"
   },
   {
      "url" : "data/tracks/{refseq}/enhancer/trackData.json",
      "type" : "FeatureTrack",
      "label" : "enhancer",
      "key" : "enhancer"
   },
   {
      "url" : "data/tracks/{refseq}/rescue_fragment/trackData.json",
      "type" : "FeatureTrack",
      "label" : "rescue_fragment",
      "key" : "rescue fragment"
   },
   {
      "url" : "data/tracks/{refseq}/regulatory_region/trackData.json",
      "label" : "regulatory_region",
      "type" : "FeatureTrack",
      "key" : "regulatory region"
   },
   {
      "url" : "data/tracks/{refseq}/point_mutation/trackData.json",
      "type" : "FeatureTrack",
      "label" : "point_mutation",
      "key" : "Mutation: point mutation"
   },
   {
      "url" : "data/tracks/{refseq}/sequence_variant/trackData.json",
      "label" : "sequence_variant",
      "type" : "FeatureTrack",
      "key" : "Mutation: sequence variant"
   },
   {
      "url" : "data/tracks/{refseq}/deletion/trackData.json",
      "type" : "FeatureTrack",
      "label" : "deletion",
      "key" : "Mutation: deletion"
   },
   {
      "url" : "data/tracks/{refseq}/insertion_site/trackData.json",
      "label" : "insertion_site",
      "type" : "FeatureTrack",
      "key" : "Mutation: insertion site"
   },
   {
      "url" : "data/tracks/{refseq}/hitsGenomic_ncRna_v22_dmel_r5_lgOddsCutoff_uniq/trackData.json",
      "label" : "hitsGenomic_ncRna_v22_dmel_r5_lgOddsCutoff_uniq",
      "type" : "FeatureTrack",
      "key" : "XRate predictions"
   }
]