browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if ((browserName == "Netscape" && browserVer >= 3) ||
(browserName == "Microsoft Internet Explorer" && browserVer >=4)) version = "n3";
else version = "n2"
if (version == "n3") {
t1on = new Image();
t1on.src = "http://www.swbooks.co.uk/timeline/images/old-reveal.jpg";
t2on = new Image();
t2on.src = "http://www.swbooks.co.uk/timeline/images/empire-reveal.jpg";
t3on = new Image();
t3on.src = "http://www.swbooks.co.uk/timeline/images/rebellion-reveal.jpg";
t4on = new Image();
t4on.src = "http://www.swbooks.co.uk/timeline/images/tnr-reveal.jpg";
t5on = new Image();
t5on.src = "http://www.swbooks.co.uk/timeline/images/njo-reveal.jpg";
t6on = new Image();
t6on.src = "http://www.swbooks.co.uk/timeline/images/legacy-reveal.jpg";
t1off = new Image();
t1off.src = "http://www.swbooks.co.uk/timeline/images/old.jpg";
t2off = new Image();
t2off.src = "http://www.swbooks.co.uk/timeline/images/empire.jpg";
t3off = new Image();
t3off.src = "http://www.swbooks.co.uk/timeline/images/rebellion.jpg";
t4off = new Image();
t4off.src = "http://www.swbooks.co.uk/timeline/images/tnr.jpg";
t5off = new Image();
t5off.src = "http://www.swbooks.co.uk/timeline/images/njo.jpg";
t6off = new Image();
t6off.src = "http://www.swbooks.co.uk/timeline/images/legacy.jpg";
}
function msover(imgName) {
if (version == "n3") {
imgOn = eval(imgName + "on.src");
document [imgName].src = imgOn;
}
}
function msout(imgName) {
if (version == "n3") {
imgOff = eval(imgName + "off.src");
document [imgName].src = imgOff;
}
}