function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(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 MM_showHideLayers2() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers2.arguments;
  if ((obj=MM_findObj('a1'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a2'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a3'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a4'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a5'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a6'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a7'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a8'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a9'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a10'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a11'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a12'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a13'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a14'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a15'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a16'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a17'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a18'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a19'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a20'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a21'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a22'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a23'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a24'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a25'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a26'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a27'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a28'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a29'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }
  if ((obj=MM_findObj('a30'))!=null) {
     obj=obj.style;
     obj.visibility='hidden';
  }

  if ((obj=MM_findObj(args[0]))!=null) {
	obj=obj.style;
	obj.visibility='visible';
  }
}