function MM_findObj(n, d) { //v4.0

  var p,i,x;  

  if(!d) 
   d=document;
 
  if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);
  }
  if(!(x=d[n])&&d.all)
   x=d.all[n]; 

  for (i=0;!x&&i<d.forms.length;i++) 
   x=d.forms[i][n];

  for(i=0;!x&&d.layers&&i<d.layers.length;i++) 
   x=MM_findObj(n,d.layers[i].document);

  if(!x && document.getElementById) 
   x=document.getElementById(n); 

  return x;

}


function MM_showHideLayers() { //v3.0

  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; 	
  }
}