code: function(node, attributeName) {
  			var out = [],
  				attList;
  
  			attList = node.getAttribute(attributeName);
  			if(attList && attList !== '') {
  				if(attList.indexOf(' ') > -1) {
  					out = attList.split(' ');
  				} else {
  					out.push(attList);
  				}
  			}
  			return out;
  		}
docs: get value of a Node attribute as an array
  
  @param  {DOM Node} node
  @param  {String} attributeName
  @return {Array}