// FRAME ESCAPE

if (top.frames.length!=0) {
    if (window.location.href.replace)
        top.location.replace(self.location.href);
    else
        top.location.href=self.document.href;
}

// SWAP IMAGES

function swapImage(sName,sImage) {
  document.images[sName].src = sImage
}

// IMAGE VIEWER

browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);

ns3up = (browserName == "Netscape" && browserVer >= 3);
ie4up = (browserName.indexOf("Microsoft") >= 0 && browserVer >= 4);

function doPic(imgName) {
if (ns3up || ie4up) {
imgOn = ("" + imgName);
document.mainpic.src = imgOn;
   }
}