Designing with JavaScript CD Code

<HTML>
<HEAD>
<TITLE>The Billboard</TITLE>
<SCRIPT LANGUAGE = "JavaScript">

bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
    if ((bName == "Netscape" && bVer >= 3) || 
        (bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "n3"; 
    else br = "n2";

    if (br == "n3") {
    boardNum = 0;
    boardSpeed = 2000;

    billboards = new Array();
    billboards[0] = new Image();
    billboards[0].src = "news.gif";
    billboards[1] = new Image();
    billboards[1].src = "archives.gif";
    billboards[2] = new Image();
    billboards[2].src = "contents.gif";

    url = new Array();
    url[0] = "news/index.html";
    url[1] = "archives/index.html";
    url[2] = "contents/index.html";
    }

function rotateBoard() {
document.billboard.src = billboards[boardNum].src;
    if (boardNum < billboards.length - 1) boardNum++;
    else boardNum = 0;
setTimeout('rotateBoard()', boardSpeed);
}

function jumpBillboard() {
window.location.href = url[boardNum];
}

</SCRIPT>
</HEAD>
<BODY BGCOLOR = "#FFFFFF">

<!-- The billboard image and link. -->
<A HREF = "javascript:jumpBillboard()">
<IMG
 onLoad = "if (br == 'n3') setTimeout('rotateBoard()', boardSpeed)"
 NAME = "billboard"
 BORDER = 0 
 HEIGHT = 100
 WIDTH = 150 
 SRC = "news.gif"></A>
</BODY>
</html>