Undefined Netscape Errors

[charlie12345]

I have a script that logs javascript errors. IE does not report any errors, but Netscape reports:
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[object Event]
error #1 in line undefined on 3/11/2 at 13:42
Netscape 5.0 (Windows; en-US)
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How can I determine what Netscape is upset about?


The script follows:
jserror_count = 0;
function reportError(msg,url,line) {
par_url = parent.location.href;
par_url = (par_url == location.href) ? "no parent" : par_url;
query_string = "

http://the3house.com/cgi-bin/jserrors.cgi"

+ "?url=" + escape(location.href)
+ "&parent=" + escape(par_url)
+ "&referrer=" + escape(document.referrer)
+ "&browser=" + escape(navigator.appName + " " + navigator.appVersion)
+ "&msg=" + escape(msg)
+ "&line=" + escape(line)
+ "&count=" + (++jserror_count);
if (document.images) {
reporter = new Image();
reporter.src = query_string;
}
return true;
}
window.onerror = reportError;