tooltip = null;

document.onmousemove = updateTooltip;

function updateTooltip(e)
{
	x = (document.all) ? window.event.x + document.body.scrollLeft : e.pageX;
	y = (document.all) ? window.event.y + document.body.scrollTop  : e.pageY;
	
	if(tooltip != null)
	{
		tooltip.style.left	= (x + 20) + "px";
		tooltip.style.top	= (y + 20) + "px";
	}
}

function showTooltip(id)
{
	tooltip = document.getElementById(id);
	tooltip.style.display = "block"
}

function hideTooltip()
{
	tooltip.style.display = "none";
}