function loadpage() {
browver= parseInt(navigator.appVersion);
browtype = navigator.appName;
browsertype = "old";
if (browtype == "Netscape" && !(browver < 3)) {
browsertype = "new"; 
}
if (browtype == "Microsoft Internet Explorer" && !(browver < 4)) {
browsertype = "new";
}
if (browsertype == "new") {
thetimer = setTimeout("changeimage()", 4000);
banneradcode = 0;
listofimages = new Array(2);
listofimages[0] = new Image(210,55)
listofimages[0].src = "images/banner-0.gif"
listofimages[1] = new Image(210,55)
listofimages[1].src = "images/banner-1.gif"
}
}

function changeimage(){
if (browsertype == "new") {
banneradcode = banneradcode + 1
if (banneradcode == "2") {
banneradcode = 0
}
imagesource = "images/banner-" + banneradcode + ".gif"
window.document.bannerad.src = imagesource
thetimer = setTimeout("changeimage()", 8000);
}
else if (browsertype == "old") {
}
}

function changepage() {
if (browsertype == "new") {
if (banneradcode == 0) {
newlocation = "museum.htm"
}
else if (banneradcode == 1) {
newlocation = "exhibits.htm"
}
location = newlocation
}
else if (browsertype == "old") {
newlocation = "museum.htm"
}
}