function changeOverflow(oToChange,hiddenHeight)
	{
		if(oToChange == undefined||oToChange.style.overflow == undefined)
		{
			alert("undefined");
			return false;
		}
		if(oToChange.style.overflow == "hidden")
		{
			oToChange.style.overflow = "visible";
			oToChange.style.height = "";
		}
		else
		{
			oToChange.style.overflow = "hidden";
			oToChange.style.height = hiddenHeight;
		}
		return true;
	}