function hideBubble() {
	var obj = document.getElementById( "bubble" );
	obj.style.visibility = "hidden";
} // hideBubble

function showBubble( the_link ) {
	var x = the_link.offsetLeft;
	var y = the_link.offsetTop;
	var obj = document.getElementById( "bubble" );
	// need to position element here...
	obj.style.visibility = "visible";
	obj.style.left = x + 3;
	obj.style.top = y - obj.offsetHeight - 3;
} // showBubble