code: function () {
  			this.writeDebug('countFilters');
  			var filterCount = 0;
  
  			if (!this.isEmptyObject(filters)) {
  				for (var key in filters) {
  					if (filters.hasOwnProperty(key)) {
  						filterCount += filters[key].length;
  					}
  				}
  			}
  
  			return filterCount;
  		}
docs: Count the selected filters
  
  @returns {number}