{"sequenceLength":255,
 "rows":
  [
   {"label":"Row Label 1",
    "color":"#999999",
    "xcolor":"#990000",
	"blocks": 
	[
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		"endPos":37,
		"tooltip":"tooltip for this block", 
		"link":"http://google.com" 
	  }
	]
   },
   {"label":"Row Label 2",
    "color":"#337700",
    "xcolor":"#000088",
	"blocks": 
	[
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		"endPos":77,
		"tooltip":"tooltip for this block", 
		"link":"http://google.com" 
	  },
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		"endPos":87,
		"tooltip":"tooltip for this block", 
		"link":"http://google.com" 
	  }
	]
   },
   {"label":"Row Label 3",
    "color":"#880000",
    "xcolor":"#008800",
	"blocks": 
	[
	  {	"startPos":41,
		"endPos":77,
		"tooltip":"", 
		"link":"" 
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  ]
}