Started learning JavaScript tooo

Hey Guys,

Me started to learn JavaScript toooo. Although was planned to start earlier rather, but was not getting enough time. Now realized that I must know this also, as I'm very dumb in this.

My future plan to upgrade my technical skill is like this.
1) JavaScript
2) JavaScript with oops concept.
3) AJAX (Very much fascinated about this stuff called AJAX, these days I only implement the design in AJAX components/widgets but want to write on my own)
4) PHP & last but not least
5) PERL

Don't know how log it will take me to reach from JavaScript to PERL, But one day, I'll definitely be a PERL programmer.

So please help me out in learning this by suggesting good stuff. I want to start it from A of JavaScript to Z of JavaScript. What I have experienced and seen to others that http://www.w3schools.com/ is very good place to start anything. I have started too from here. I have also a .pdf material for JavaScript which illustrates the JavaScript like kids. That .pdf and http://www.w3schools.com/ materials teaches me like teacher. Means everything step-by-step.

If you feel that you are also having such material then please pass on to me. I would be highly greatfull to you.

Debugging tool for IE 6.0 and IE 7.0, similar to FireBug please?

Can anybody suggest me the debugging tool for IE 6.0 and IE 7.0, similar to FireBug, uses for Firefox? I have IE Developer Toolbar, but that doesn't gives the feeling what FireBug gives in Firefox.

I really need that for my work.

Anybody have idea about that?