function initMenu(Id)

{
  var CatIdArray = new Array;
  var ChosenCatIdArray = new Array;
  var CategoryId;
  var chosenCategory;
  var numChildren;
  var CatId;
  var CatName;
  var level;
  var index;
  var i;
  var j;

  if (n[Id] == null)
  {
    changeMenu(-1);
    return;
  }
  CategoryId = Id;
  level = 0;
  while (CategoryId != 0 && level < 6)
  {
        ChosenCatIdArray[level] = CategoryId;
  outerloop:
    for (i = 0; i < c.length; i++)
    {
          if (c[i] == null)
            continue;
      for (j = 0; j < c[i].length; j++)
      {
        if (c[i][j] == CategoryId)
        {
          CategoryId = i;
          CatIdArray[level] = CategoryId;
              break outerloop;
            }
          }
    }
    level++;

  }
  if (CategoryId != 0)
  {
    changeMenu(-1);
    return;
  }
  CatIdArray.reverse();
  ChosenCatIdArray.reverse();
  for (index = 0 ; index < CatIdArray.length; index++)
  {
    CatMenu[index].length = 0;
    chosenCategory = CatIdArray[index];
         numChildren = c[chosenCategory].length;
    for (i = 0; i < numChildren; i++)
    {
      CatId = c[chosenCategory][i];
      CatName = (c[CatId]==null) ? n[CatId] : n[CatId]+ " ->";
      CatMenu[index].options[i] = new Option(CatName, CatId);
      if (CatId == ChosenCatIdArray[index])

             CatMenu[index].options[i].selected = true;
    }

    CatMenu[index].length = numChildren;
    if (index > 0)
           CatMenu[index].options[numChildren] = new Option("-----------------------------------");
  }

  for (i = index; i < CatMenu.length; i++)
  {
    CatMenu[i].length = 0;
    CatMenu[i].options[0] = new Option("-----------------------------------");
  }
}

function changeMenu(cm)

{
  var chosenCategory;
  var numChildren;
  var CatId;
  var CatName;
  var i;

  if ((cm != -1) && (CatMenu[cm].length < 1))
    return;
  if (cm == -1)
    chosenCategory = 0;
  else
  {
    if (CatMenu[cm].selectedIndex == -1)
      return;
    chosenCategory = CatMenu[cm].options[CatMenu[cm].selectedIndex].value;
  }
  if (c[chosenCategory]==null)
  {
    document.sell.category1.value = chosenCategory;
    numChildren = 0;

  }

  else

  {

    if (cm != -1)

    {

      if (document.sell.name != "ChangePreferencesShow")

        document.sell.category1.value = "";

      else

        document.sell.category1.value = chosenCategory;

    }

    numChildren = c[chosenCategory].length;

  }

  if ((cm+1) < CatMenu.length)

  {

    for (i = 0; i < numChildren; i++)

    {

      CatId = c[chosenCategory][i];

      CatName = (c[CatId]==null) ? n[CatId] : n[CatId]+ " ->";

      CatMenu[cm+1].options[i] = new Option(CatName, CatId);

    }

    CatMenu[cm+1].length = numChildren;

  }

  for (i = cm+2; i < CatMenu.length; i++)

  {

    CatMenu[i].length = 0;

  }

  for (i = cm+1; i < CatMenu.length; i++)

  {

    if (i)

      CatMenu[i].options[CatMenu[i].length] = new Option("-----------------------------------");

  }

}