	<!--
bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
if ((bName == "Netscape" && bVer >= 3) ||
    (bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "ok";
else br = "notok";

if (br == "ok")
{
            var nexton = new Image();
    nexton.src = "images/next_over.gif";
    var nextoff = new Image();
    nextoff.src = "images/next_down.gif";
    var backon = new Image();
    backon.src = "images/back_over.gif";
    var backoff = new Image();
    backoff.src = "images/back_down.gif";
}


function changeImage(imgDocID,imgObjName)
{

document[imgDocID].src = eval(imgObjName + ".src");

}