function showEvent(title)
	{
		var oToolTip = document.getElementById('tooltip');
		oToolTip.innerHTML = '<div id="close"><a href="javascript:closeEvent();"><img src="graphics/close.gif" width="10" height="10" alt="close" /></a></div>' + title;
		var nTop = 170;
		var nLeft = Math.floor((document.body.offsetWidth - oToolTip.offsetWidth) / 2) + 80;
		oToolTip.style.top = nTop + 'px';
		oToolTip.style.left = nLeft + 'px';
		oToolTip.style.visibility = "visible";
		return false;
	}

	function closeEvent()
	{
		var oToolTip = document.getElementById('tooltip');
		oToolTip.style.visibility = "hidden";
	}