var lastSubMenu = false;

function fireMenuEvent( section )
{
	var theElement = document.getElementById(section);
	if( lastSubMenu != false)
	{
		document.getElementById(lastSubMenu).style.display = "none";
	}
	if( typeof(theElement) != "undefined" )
	{
		theElement.style.display = "block";
		lastSubMenu = theElement.id;
	}
}