variables can't be local to a state?

I haven't been able to declare new varaibles local to one state without a syntax error. Can they only be made local to a function or sub-function code block?

Here's the relevant section:

float cJUST_A_CLICK_DISTANCE = 0.1;
vector gClickPos;


state live
{
// float clickPos; <--This doesn't work, had to define global gClickPos instead.

    touch_start(integer total_number)
    {
        gClickPos = llGetPos();  // Where I was at mouse-down.
    }

    touch_end(integer total_number)
    {
        // If I barely moved since mouse-down, handle single-click event,
        // otherwise it's a drag and just let that happen.
        if (llVecDist(gClickPos, llGetPos()) < cJUST_A_CLICK_DISTANCE)
        {
            state inert;
        }
    }
}

Yes. http://secondlife.com/badgeo/wakka.php?wakka=localvariables

Thanks. I'd seen that already. Silly me was mislead by the oversimplified, non-technical definition of "code block" there. ("Between an opening and closing brace -- { }."