function ddover(o){o.className='dropdown-over'}
function ddout(o){o.className='dropdown'}
function getLeft(obj)
{
  res = obj.offsetLeft;
  while (obj = obj.offsetParent)
    res += obj.offsetLeft;
  return res;
}
function getTop(obj)
{
  res = obj.offsetTop;
  while (obj = obj.offsetParent)
    res += obj.offsetTop;
  return res;
}
function getEl(name)
{
  if (document.getElementById) {
    return document.getElementById(name);
  } else if (document.all) {
    return document.all(name);
  }
}
timingout = false;
function showmenu(oid)
{
  hidelayers(oid);
  m = getEl('sadropdown'+oid);
  m.style.display = 'block';
  m = getEl('img_sadropdown'+oid);
  m.src = '../img/nav/dropdown-'+oid+'-act.gif'
}
function hidelayers(exceptid)
{
  if (!timingout)
    return;
  timingout = false;
  if (document.getElementsByTagName) {
    a = document.getElementsByTagName('DIV');
  } else if (document.all) {  
    a = document.all.tags('DIV');
  } else return;
  for (i=0; i<a.length - 1; i++) {
    if (a[i].id) {
      name = a[i].id;
      if ((name.substring(0,10) == 'sadropdown') && (name != ('sadropdown' + exceptid))) {
        a[i].style.display = 'none';
        oid = name.substr(10);
        m = getEl('img_sadropdown'+oid);
        m.src = '../img/nav/dropdown-'+oid+'.gif'
      }
    }
  }
}
function hidemenus(exceptid)
{
  timingout = true;
  setTimeout("hidelayers('"+exceptid+"')", 100);
}