Keep getting the following error on a Javascript Function:

browserName = navigator.appName; // detect browser
browserVer = parseInt(navigator.appVersion);
if ((browserName == "Netscape") | | (browserVer >= 3)) {
version = "n3";
}
else {
version = "n2";
}
if (version == "n3")

And this is the error I'm receiving:

Reason: syntax error at ./king.pl line 156, near ")) " (Might be a runaway multi-line | | string starting on line 104) syntax error at ./king.pl line 159, near "else"


Any help would be appreciated.

Thanks
Fred