function showMenu(divName)
{
	if(document.all)
	{
	document.all[divName].style.visibility = 'visible';
	}
	if(document.layers)
	{
	document.layers[divName].visibility = "show";
	}
	if(document.getElementById)
	{
	document.getElementById(divName).style.visibility = 'visible';
	}	
}

function hideMenu(divName)
{
	if(document.all)
	{
	document.all[divName].style.visibility = 'hidden';
	}
	if(document.layers)
	{
	document.layers[divName].visibility = "hide";
	}
	if(document.getElementById)
	{
	document.getElementById(divName).style.visibility = 'hidden';
	}		
}