[ {
       id : "genes", label : "Genes and Gene Predictions", open : true, 
       tracks: [ 
	  { id : "knownGene", label: "UCSC Genes", vis : "pack", canPack : true},
	  { id : "knownGeneOld3", label: "Old UCSC Genes", vis : "hide", canPack : true},
	  { id : "ensGene", label : "Ensembl Genes", vis : "hide" , canPack : true}, 
       ]
   }, {
       id : "phenotype", label : "Phenotype and Disease Associations", open : true, 
       tracks: [ 
	  { id : "gad", label : "GAD View", vis : "hide" , canPack : true}, 
	  { id : "rgdQtl", label: "RGD Human QTL", vis : "pack", canPack : true},
	  { id : "rgdQtlRat", label: "RGD Rat QTL", vis : "hide", canPack : true},
	  { id : "mgiQtlMapped", label: "MGI Mouse QTL", vis : "hide", canPack : true},
       ]
   }
]