window.onerror = null;

var netscape = 0;
var goodIE = 0;
browserName = navigator.appName.substring(0,8);
browserVer = parseFloat(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 3)
{ netscape = 1; }
if (browserName == "Microsof" && browserVer >= 4)
{ goodIE = 1; }
// end error trapping code


if (netscape || goodIE) {

     def_img= new Image(80,18);
     def_img.src="images/circlehome.gif";  
     over= new Image(80,18);
     over.src="images/circlehomeonn.gif";
}

function hiLite(imgDocID, imgObjName) {
if (netscape || goodIE) {
        document.images[imgDocID].src = eval(imgObjName + ".src");
}}