code: function(tagName, parent){
  	this.name = tagName;
  	this.parent = parent;
  	this.attributes = {};
  	this.children = [];
  	this.tagScore = 0;
  	this.attributeScore = 0;
  	this.totalScore = 0;
  	this.elementData = "";
  	this.info = {
  		textLength: 0,
  		linkLength: 0,
  		commas:		0,
  		density:	0,
  		tagCount:	{}
  	};
  	this.isCandidate = false;
  }
docs: 1. the tree element