function toggleFold(sender, id) {
  var elm = document.getElementById(id);
  if (elm.style.display == "none") {
    elm.style.display = "block";
    sender.className = "unfolded";
  } else {
    elm.style.display = "none";
    sender.className = "folded";
  }
}

function showthis(obj) {
   if(!obj) return false;

   if((obj == "作品") || (obj == "レシピ・パターン") || (obj == "キット") || (obj == "講座・教室") || (obj == "その他")) {
      document.getElementById("item1-1").style.display = "none";
      document.getElementById("item1-2").style.display = "none";
      document.getElementById("item1-1").style.display = "block";
      document.getElementById("item2-1").style.display = "none";
      document.getElementById("item2-2").style.display = "none";
      document.getElementById("item2-1").style.display = "block";
      document.getElementById("item3-1").style.display = "none";
      document.getElementById("item3-2").style.display = "none";
      document.getElementById("item3-1").style.display = "block";
}
   if((obj == "布地・毛糸・副資材")) {
      document.getElementById("item1-1").style.display = "none";
      document.getElementById("item1-2").style.display = "none";
      document.getElementById("item1-2").style.display = "block";
      document.getElementById("item2-1").style.display = "none";
      document.getElementById("item2-2").style.display = "none";
      document.getElementById("item2-2").style.display = "block";
      document.getElementById("item3-1").style.display = "none";
      document.getElementById("item3-2").style.display = "none";
      document.getElementById("item3-2").style.display = "block";}
 else {
      return false;
   }
}

function showthis2() {
obj = document.thisform.ItemCat1.options[document.thisform.ItemCat1.selectedIndex].value;
   if(!obj) return false;

   if((obj == "作品") || (obj == "レシピ・パターン") || (obj == "キット") || (obj == "講座・教室") || (obj == "その他")) {
      document.getElementById("item1-1").style.display = "none";
      document.getElementById("item1-2").style.display = "none";
      document.getElementById("item1-1").style.display = "block";
      document.getElementById("item2-1").style.display = "none";
      document.getElementById("item2-2").style.display = "none";
      document.getElementById("item2-1").style.display = "block";
      document.getElementById("item3-1").style.display = "none";
      document.getElementById("item3-2").style.display = "none";
      document.getElementById("item3-1").style.display = "block";
}
   if((obj == "布地・毛糸・副資材")) {
      document.getElementById("item1-1").style.display = "none";
      document.getElementById("item1-2").style.display = "none";
      document.getElementById("item1-2").style.display = "block";
      document.getElementById("item2-1").style.display = "none";
      document.getElementById("item2-2").style.display = "none";
      document.getElementById("item2-2").style.display = "block";
      document.getElementById("item3-1").style.display = "none";
      document.getElementById("item3-2").style.display = "none";
      document.getElementById("item3-2").style.display = "block";
}
 else {
      return false;
   }
}