function sw(what)
{
	if (document.layers)
	{
		eval("e=document.cat"+what);
		s='show';
		h='hide';
	}
	else
	{
		e=document.getElementById("cat"+what).style;
		s='visible';
		h='hidden';
	}

	if (e.visibility==s)
	{
		e.visibility=h;
		e.position='absolute';
	}
	else
	{
		e.position='relative';
		e.visibility=s;
	}

	return true;
}

// SubMenu
  
function startmenu()
{
	//menu0.style.display = "none";
}
  
function menu0func()
{
    el=document.getElementById("menu0");
  	if(el.style.display == "none")
	{
  		el.style.display = "block";
  		el.style.visibility="visible";
  	}
  	else
  	{
  	  el.style.display = "none";
  	  el.style.visibility="hidden";	
  	}
}