<!--

	function getObj(name)
	{
	  if (document.getElementById)
	  {
		this.obj = document.getElementById(name);
		this.style = document.getElementById(name).style;
	  }
	  else if (document.all)
	  {
		this.obj = document.all[name];
		this.style = document.all[name].style;
	  }
	  else if (document.layers)
	  {
		this.obj = getObjNN4(document,name);
		this.style = this.obj;
	  }
	}
	
	function hideBox(BoxId)
	{
		var o = new getObj(BoxId);
		o.style.display = "none";
	}

	function displayBox(BoxId)
	{
		hideBox('s1'); hideBox('s2'); hideBox('s3');
		
		var o2 = new getObj(BoxId);
		o2.style.display = "block";
	}
	function dBox(BoxId)
	{
		var o3 = new getObj(BoxId);
		if (o3.style.display == "block")
		{
			o3.style.display = "none";
		}
		else
		{
			o3.style.display = "block";
		}
	}

//-->