browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 3) browserVer = "1";
else if (browserName == "Microsoft Internet Explorer" && browserVer == 6) browserVer = "1";
else browserVer = "2";

//LOGIN BUTTON:
if (browserVer == 1) {
b1 = new Image(107,36);
b1.src = "_media/gfx/home_login.jpg";
b2 = new Image(107,36);
b2.src = "_media/gfx/home_login_hover.jpg";
}

//image swapping function:
function hiLite(imgDocID, imgObjName, comment) {
if (browserVer == 1) {
document.images[imgDocID].src = eval(imgObjName + ".src");
window.status = comment; return true;
}}