What is the best jQuery Debug Plugin?

I'm wondering if anyone knows of a really great jQuery Debug plugin. One that will spit out friendly errors.

Ideally this would be one that I would just include along with the rest of my jQuery files and then if it encounters an error it would spit out a little div at top:0, left:0 with the error in it.

Like this:

ERROR: You forgot to include jQuery, moran.

I realize the console is awes开发者_StackOverflow中文版ome and all but, to be honest, I'm sick of opening and closing it, and then puzzling my noob noodle about what it's trying to tell me.

Thanks for any suggestions.

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Firebug is a GREAT tool. Might want to look at jquerylint as well.

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Also WebKit's Developer Tools are a must in addition to Firebug. They come with Chrome and Safari, I believe.