var Tooltips = 
{
	init: function ()
	{
		var links = document.getElementsByTagName("a");
		
		for (var i = 0; i < links.length; i++)
		{
			var title = links[i].getAttribute("title");
			
			if (title && title.length > 0)
			{
				Core.addEventListener(links[i], "mouseover", Tooltips.showTipListener);
				Core.addEventListener(links[i], "focus", Tooltips.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.getAttribute("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)
  {
    var link = this;
    this._timer = setTimeout(function()
        {
          Tooltips.showTip(link);
        }, 100);
    Core.preventDefault(event);
  },
  
  hideTipListener: function(event)
  {
    clearTimeout(this._timer);
    Tooltips.hideTip(this);
  }		
	
};

Core.start(Tooltips);