var hoverTipLoaded; 
function initTipHelp (root) {
	if (hoverTipLoaded && !root)
		return;
	hoverTipLoaded = true;
	var tips;
	if (root == 'ContentReady') {
		tips = YAHOO.util.Dom.getElementsByClassName('wg-hovertip');
	}
	else {
		tips = YAHOO.util.Dom.getElementsByClassName('wg-hovertip','',root);
	}
	for (var i = tips.length; i--; ) {
		var myTip = new YAHOO.widget.Tooltip(tips[i], {
			autodismissdelay: 1000000,
			context: tips[i].parentNode,
			text : tips[i].innerHTML
		});
		tips[i].innerHTML = "";
	}
}