flash actionscript: I have been following this tutorial -->
http://www.macromedia.com/devnet/flash/articles/bitwise_operators_04.html

In the second code block, Grant performs an AND operation using the values
argb and 0xFF000000 to extract the alpha component:

var argb:Number = 0xFFC97B33;
// mask the alpha bits, then shift them to the least significant bits
// shifting 6 hex digits, so 24 binary digits
var alpha:Number = (argb & 0xFF000000)>>24;
trace("Alpha: "+alpha.toString(16));

I was expecting the trace output to be: "Alpha: FF".

The result that was displayed was "Alpha: -1"

Can someone explain this?

I have found the solution here:
http://www.gskinner.com/blog/archives/2005/12/source_code_tra.html

If you look further down, Grant explains what's wrong.

This line:

var alpha:Number = (argb & 0xFF000000)>>24;

should be:

var alpha:Number = (argb & 0xFF000000)>>>24;

(notice 3 > are used instead of 2)
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