does the Venkman tutorial or the debugger work for anyone?

Hi,

I'm trying to do an example in the Javascript debugger tutorial here(page 3
"Basic Debugging"):
http://www.svendtofte.com/code/lear...kman/basics.php

Here is the example script:
Code:

3) <script>
4) var a = 1;

5) function test(a) {
6)    var t = "passed : ";
7)    return t + a;
8) }

9) var b = test(a);
10) document.write("<p>" + b + "</p>");
11) </script>



I clicked the Stop button in the debugger and reloaded the script, and Line
4 was highlighted in yellow(the tutorial says it should be line 3). I typed
'a' into the Interactive Session input line, and hit return. I got an error
message sayng 'a' was not defined. So far, so good.

I clicked on Step Into and then line 5 was highlighted. I typed 'a' into the
Interactive Session input line again, and hit return. I got this:

< 001: a
>$[0] = [void] void

The tutorial says I should get a value of 1 for a. That doesn't appear to be
giving me a value of 1 for a.

Next, I clicked Step Into again, and line 9) was highlighed in yellow. I
typed in 'a' again just to see what would happen, and I got the same thing:

< 0001: a
>$[0] = [void] void

Once again, it doesn't appear that's a value of 1 for a. I typed in 'b', and
as expected I got an error saying b was not defined. Then, I typed in
'test(a)'. The tutorial says I should've got:

passed : 1

for test(a). But, I got:

<0001: test(a)
> $[1] = [string] "passed : undefined"

What the heck is going on?

I clicked Step Into again and it jumped up to line 4). Huh? Why not line 5)?
I entered 'a' in again, and this is what I got again:

< 0001: a
>$[0] = [void] void

I clicked Step Into again and advanced to line 5). I typed 'a' in again:

<0001: a
>$[0] = [integer] 1

Finally!! A value of 1 for 'a'. Can anyone explain this debugger's behavior?
Why no value for 'a' sooner?

Then, when I click Step Into successively after that, this is what happens:

line 9)
line 6)
line 7)
line 9)
line 10)

It just doesn't seem to make sense. The whole sequence is:

4)
5)
9)

4)
5)
9)

6)
7)
9)
10)