browserok = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3)) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion)>=3)));

if(browserok)
{
	listenOn = new Image(223, 44);
	listenOn.src = "./images/listen-on.gif";
	downloadOn = new Image(409, 44);
	downloadOn.src = "./images/download-on.gif";
	contactOn = new Image(176, 44);
	contactOn.src = "./images/contact-on.gif";

	listenOff = new Image(223, 44);
	listenOff.src = "./images/listen.gif";
	downloadOff = new Image(409, 44);
	downloadOff.src = "./images/download.gif";
	contactOff = new Image(176, 44);
	contactOff.src = "./images/contact.gif";
}

function mouseOn(imgName)
{
	if(browserok)
	{
		imageOn = eval(imgName + "On.src");
		document [imgName].src = imageOn;
	}
}

function mouseOff(imgName)
{
	if(browserok)
	{
		imageOff = eval(imgName + "Off.src");
		document [imgName].src = imageOff;
	}
}

function PopDialog(URLString, winWidth, winHeight)
{
	var windowProperties = '';
	windowProperties = windowProperties + 'fullscreen=no,';
	windowProperties = windowProperties + 'toolbar=no,';
	windowProperties = windowProperties + 'location=no,';
	windowProperties = windowProperties + 'directories=no,';
	windowProperties = windowProperties + 'status=no,';
	windowProperties = windowProperties + 'menubar=no,';
	windowProperties = windowProperties + 'scrollbars=no,';
	windowProperties = windowProperties + 'resizable=yes,';
	windowProperties = windowProperties + 'top=50,';
	windowProperties = windowProperties + 'left=100,';
	windowProperties = windowProperties + 'width=' + winWidth + ',';
	windowProperties = windowProperties + 'height=' + winHeight;
	var win = window.open(URLString, '', windowProperties);
}

function GetObject (idName) {
	if (document.layers) {
		// Netscape 4
		return document.layers[ idName ];
	} else if (navigator.userAgent.indexOf('Opera') != -1) {
		// Opera
		return document.all[ idName ];
	} else if (document.all && !document.getElementById) {
		// Explorer 4
		return document.all[ idName ];
	} else if (document.getElementById) {
		// Netscape 6 & Explorer 5
		return document.getElementById(idName);
	}
}

function DisplayBlock(idName, display) {
	var myObject = GetObject (idName);
	myObject.style.display = display;
}