function toggleShow()
	{
	  var i,p,v,obj,args=toggleShow.arguments;
	  for (i=0; i<(args.length); i+=1) 
	  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null))
	  { 
	  	v=args[i+2];
	    if (obj.style)
		{
			obj=obj.style;
			v = (obj.display == 'none') ? '' : 'none';
		}
	    obj.display = v;
	  }
	}
	
	function un_toggleImage(src) 
	{ 
		document.images ['tool'] .src=src 
	}