// JavaScript

function message(msg) {
	top.left.document.getElementById("optional").innerHTML = msg;
	return true;
}

function navi(msg) {
	top.topright.document.getElementById("navi").innerHTML = msg;
	return true;
}

var imgdir = "images";		// default

function movein(element) {
	if (element) {
		element.style.backgroundImage =
				"url(" + imgdir + "/bg-light.gif)";
		element.style.color="black";
	}
	return true;
}
function moveout(element) {
	if (element) {
		element.style.backgroundImage =
				"url(" + imgdir + "/bg.gif)";
		element.style.color="#ffffcc";
	}
	return true;
}

function oneUp(href1, href2, href3) {
	var msg = '';
 	if (href2 && href2.length)
 		msg = '<A TARGET="body" HREF="' + href2 + '">'
 			+ '<IMG ALIGN="top" SRC="images/back.gif">'
			+ '&nbsp;previous</A>'
	+ '<IMG ALIGN="top" WIDTH=30 HEIGHT=20 SRC="images/Pixel.gif">';

 	msg += '<A TARGET="body" HREF="' + href1 + '">'
 			+ '<IMG ALIGN="top" SRC="images/up.gif">'
			+ '&nbsp;up one level&nbsp;'
 			+ '<IMG ALIGN="top" SRC="images/up.gif"></A>';
 
	if (href3 && href3.length)
		msg +=
		'<IMG ALIGN="top" WIDTH=30 HEIGHT=20 SRC="images/Pixel.gif">'
			+ '<A TARGET="body" HREF="' + href3 + '">more&nbsp;'
			+ '<IMG ALIGN="top" SRC="images/next.gif"></A>'

 	return navi(msg);
}