var pFilters = [];
function togglePotatoes(pType) {
  if (pFilters.indexOf(pType) > -1) {
    pFilters.splice(pFilters.indexOf(pType),1);
  } else {
    pFilters.push(pType);
  }
  console.log(pFilters.join(","));

  $(pFilters.join(",")).hide('fast');
  $("#potatoes li").not($(pFilters.join(","))).show('fast');

}