Easy prob, (for a guru maybe) if xPos

1

hi Iv got this if condition problem, here I go
Iv got this button that sets _xdest = 450.
what i am trying to do is set an If move._xPos>= 450 then a function is activated
like this

move.onEnterFrame = function() {
    if (_root.move._xPos>= 450) {
        out();
    }
};

heres the file
thanks in advance for any suggestions.