function MM_showHideLayers() { //v9.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}
function high(which2)
{
theobject=which2;
highlighting=setInterval("highlightit(theobject)",10);
}

function low(which2)
{
clearInterval(highlighting);
theobject=which2;
theobject.filters.alpha.opacity=100;
}
function highlightit(cur2)
{
if(cur2.filters.alpha.opacity>50)
cur2.filters.alpha.opacity-=7
else if(window.highlighting)
clearInterval(highlighting)
}