// JavaScript Document

// function to show / hide our sub menus
function showtip( target ) {
	var targetNode = document.getElementById( target );
	if( targetNode.style.visibility == 'hidden' ) {
		targetNode.style.visibility = 'visible';
	}
}

function closetip( target ) {
	var targetNode = document.getElementById( target );
	if( targetNode.style.visibility == 'visible' ) {
		 targetNode.style.visibility = 'hidden';
	}
}

function toggletip( target ) {
	var targetNode = document.getElementById( target );
	if( targetNode.style.visibility == 'visible' ) {
		targetNode.style.visibility = 'hidden';
	} else {
		targetNode.style.visibility = 'visible';
	}
}