You can also write an html file and execute it. The users default browser should start. In that html file you can redirect the browser to your web site where your help is maintained and perhaps in there is a mail to html tag and a download link to the latest version. Here is what my help dialog button does.
function help() {
try{
var URL = new File(Folder.temp + "/PhotoCollageToolkit.html");
URL.open("w");
URL.writeln('<html><HEAD><meta HTTP-EQUIV="REFRESH" content="0; url=http://www.mouseprints.net/old/dpr/PhotoCollageToolkit.html"></HEAD></HTML>');
URL.close();
URL.execute();
}catch(e){
alert("Error, Can Not Open.");
};
}
You could keep the html code local so no internet connection is required. Where the html includes your alert text and has a mail to tag. The Script keeps running is not stopped by the alert and a browser windows opens.