Always use JSLint
Very annoying, when I run my Javascript on a web server, it contains simple errors like syntax error.
It gets worse if the server is not local.
Javascript is a dynamic language, so syntax errors could only be detected at runtime, right?
WRONG.
Douglas Crockford, a Yahoo's employee and Javascript guru, has created tools named JSLint. Copy-paste JavaScript code into http://www.jslint.com, then click the JSLint button. You will soon find your bugs in the Javascript code, so it can be repaired before uploading it to the server.
Now I always use JSLint.
