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"){

img1off = new Image();
img1off.src = "/images/spacer.gif"

img1on = new Image();
img1on.src = "/images/grn_arrow.gif"

}


function dotAct(imgName, srcName)
{
if (br == "n3"){
document[imgName].src=eval(srcName + "on.src");
}
}

function dotInact(imgName, srcName)
{
if (br == "n3"){
document[imgName].src=eval(srcName + "off.src");
}
}