var browser = navigator.appName
var version = parseInt(navigator.appVersion)
var ns4 = (browser == "Netscape" && version >= 4)
var ie4 = (browser == "Microsoft Internet Explorer" && version >= 4)
var rdy = true

// hide and show for layers
function showObject(Name) {
if (rdy)
	if (ns4)
		eval("document."+Name+".visibility = 'show'");
	else if (ie4)
		eval(Name+".style.visibility = 'visible'");
}

function hideObject(Name) {
if (rdy)
	if (ns4)
		eval("document."+Name+".visibility = 'hide'");
	else if	(ie4)
		eval(Name+".style.visibility = 'hidden'");
}

function HideAll()
{
	for(i=0;i<11;i++)
		hideObject("Layer"+i);
}
function ChangeHeaderInfo(Name)
{
	HideAll();
	showObject(Name);
}