var template.prototype.options = [{
        attr:[
          {
            tabindex: "0"
          },
          {
            dataset: ""
          },
          {
            role: "link"
          }
        ]
}];

template.addLink = function(elem, options){
      var el = document.querySelectorAll(elem);
      var forEach = Array.prototype.forEach;


      el.forEach(function(item){
          options.attr.dataset = item.dataset;
          function setAttr(item, options){
            for(var key in options){
              item.setAttribute(key, options[key]);
            }
          }
      });
}