function showLayer(divName, expandDiv, dexpandDiv)
{
	document.getElementById(divName).style.visibility = "visible";
	document.getElementById(divName).style.height = "100%";	
document.getElementById(dexpandDiv).style.visibility = "visible";
	document.getElementById(expandDiv).style.visibility = "hidden";											
}

function hideLayer(divName, expandDiv, dexpandDiv)
{

	document.getElementById(divName).style.visibility = "hidden";
	document.getElementById(divName).style.height = "0";
	document.getElementById(expandDiv).style.visibility = "visible";
	document.getElementById(dexpandDiv).style.visibility = "hidden";
							
}