function openTip(sWrapper, eTip)
{
	eWrapper = document.getElementById( sWrapper );
	aTips = eWrapper.getElementsByTagName("div");
	for (var i=0; i<aTips.length; i++)
	{
		if(aTips[i].className == "open")
			aTips[i].className = "closed";
	}
	eTip.className = "open";
}