Shopify collections get current product type or vendor

gistfile1.js

// Making the selected product type/vendor active at Collections page
  var urlParams = {};
  (function () {
      var e,
          a = /\+/g,  // Regex for replacing addition symbol with a space
          r = /([^&=]+)=?([^&]*)/g,
          d = function (s) { return decodeURIComponent(s.replace(a, " ")); },
          q = window.location.search.substring(1);

      while (e = r.exec(q))
         urlParams[d(e[1])] = d(e[2]);
  })();  
  if (urlParams['q']) {
    jQuery(".collection #navigation .jquery-active a").each(function(index){
      if (jQuery(this).html() == urlParams['q']) {
        jQuery(this).addClass('active');
      }
    });
  }