var layerNames = new Array("Products", "Capabilities", "Location", "Contact", "Copro");

function showLayer(layerName) {
	// if Netscape 4...
	if (document.layers)
		document.layers[layerName].visibility="visible";
	// if IE...
	else if (document.all)
		document.all[layerName].style.visibility="visible";
	// if Netscape 6...
	else if (!document.all && document.getElementById)
		document.getElementById(layerName).style.visibility="visible";
}


function hideAll() {
	// if Netscape 4...
	if (document.layers)
		for (i=0; i<layerNames.length; i++)
			document.layers[layerNames[i]].visibility="hidden";
	// if IE...
	else if (document.all)
		for (i=0; i<layerNames.length; i++)
			document.all[layerNames[i]].style.visibility="hidden";
	// if Netscape 6...
	else if (!document.all && document.getElementById) {
		for (i=0; i<layerNames.length; i++)
			document.getElementById(layerNames[i]).style.visibility="hidden";
//		window.history.go(0);
	}
}