var TimeToFade = 1000;
var reduceHeightBy = 4;
function fade(eid)
{
  var element = document.getElementById(eid);
  if(element == null)
    return;

  if(element.FadeState == null)
  {
    if(element.style.opacity == null
        || element.style.opacity == ''
        || element.style.opacity == '1')
    {
      element.FadeState = 2;
    }
    else
    {
      element.FadeState = -2;
    }
  }
  if(element.FadeState != 2)
    element.style.display = 'block';

  if(element.FadeState == 1 || element.FadeState == -1)
  {
    element.FadeState = element.FadeState == 1 ? -1 : 1;
    element.FadeTimeLeft = TimeToFade - element.FadeTimeLeft;
  }
  else
  {
    element.FadeState = element.FadeState == 2 ? -1 : 1;
    element.FadeTimeLeft = TimeToFade;
    setTimeout("animateFade(" + new Date().getTime()
        + ",'" + eid + "')", 33);
  }
}
function animateFade(lastTick, eid)
{
  var curTick = new Date().getTime();
  var elapsedTicks = curTick - lastTick;

  var element = document.getElementById(eid);

  if(element.FadeTimeLeft <= elapsedTicks)
  {
    element.style.opacity = element.FadeState == 1 ? '1' : '0';
    element.style.filter = 'alpha(opacity = '
        + (element.FadeState == 1 ? '100' : '0') + ')';
    element.FadeState = element.FadeState == 1 ? 2 : -2;
    if(element.FadeState == -2)
      element.style.display = 'none';
    else
      element.style.display = 'block';
    return;
  }

  element.FadeTimeLeft -= elapsedTicks;
  var newOpVal = element.FadeTimeLeft/TimeToFade;
  if(element.FadeState == 1)
    newOpVal = 1 - newOpVal;

  element.style.opacity = newOpVal;
  element.style.filter =
      'alpha(opacity = ' + (newOpVal*100) + ')';

  setTimeout("animateFade(" + curTick
      + ",'" + eid + "')", 33);
}

function doLocationNavHighlights(location_grouping, location_name){
  if(!document.layers){
    var atags=document.getElementsByTagName("div");
      for(var i=0;i<atags.length;i++){
         if(atags[i].className=="domMenuLocations_menuElement") {
            if(atags[i].childNodes[0].innerHTML.toLowerCase()==location_grouping){
              domMenu_activateSubMenu(atags[i].parentNode);
              doLocationNavHighlights(location_grouping, location_name);
              atags[i].id="activeMenuElement";
              domMenu_toggleSubMenu(atags[i].parentNode, 'hidden');
            }
         }
         if(atags[i].className=="domMenuLocations_subMenuElement") {
            if(atags[i].innerHTML.toLowerCase()==location_name){
              atags[i].id="activeMenuElement";
            }
         }
      }
  }
}
function show_hide(nm){
  obj = document.getElementById(nm);
  if(obj.style.display == 'block')
    obj.style.display = 'none';
  else
    obj.style.display = 'block';
  return false;
}