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; 
		}
}