// JavaScript Document

var Tooltips =
{
		init: function()
		{
			var links = document.getElementsByTagName("a");
			
			for (var i = 0; i< links.lenghth; i++)
			{
				var title = links[i].getAttribute("title");
				
				if (title && title.length > 0)
				{
					Core.addEventListener(
						links[i], "mouseover", Tooltips.showTipListener);
					Core.addEventListener(
						links[i], "focus", Toltips.showTipListener);
					Core.addEventListener(
						links[i], "mouseout", Tooltips.hideTipListener);
					Core.addEventListener(
						links[i], "blur", Tooltips.hideTipListener);
				}
			}
		},
		
		showTip: function(link)
		{
			Tooltips.hideTip(link);
			
			var tip = document.createElement("span");
			tip.className = "tooltip";
			var tipText = document.createTextNode(link.title);
			tip.appendChild(tipText);
			link.appendChild(tip);
			
			link._tooltip = tip;
			link.title = "";
			
			// Fix for Safari2/Opera9 repaint issue
			document.documentElement.style.position = "relative";
		},
		
		hideTip: function(link)
		{
			if (link._tooltip)
			{
				link.title = link._tooltip.childNodes[0].nodeValue;
				link.removeChild(link._tooltip);
				link._tooltip = null;
				
		// Fix for Safari2/Opera9 repaint issue
		document.documentElement.style.position = "static";
			}
		},
		
		showTipListener: function(event)
		{
			Tooltips.showTip(this);
			Core.preventDefault(event);
		},
		
		hideTipListener: function(event)
		{
			Tooltips.hideTip(this);			
		}
	};
	
	Core.start(Tooltips);