function getToolTip(tipName)
{
	if (document.all)
		return document.all[tipName].style;
	else if (document.layers)
		return document.layers[tipName];
	else if (document.getElementById)
		return document.getElementById(tipName).style;
	else
		return null;
}

function showToolTip(tipName, tipX, tipY)
{
	var tip = getToolTip(tipName);
	if (!tip) return;

	tip.left = tipX;
	tip.top = tipY;
	tip.visibility = "visible";
}

function hideToolTip(tipName)
{
	var tip = getToolTip(tipName);
	if (!tip) return;
	tip.visibility = "hidden";
}