[HELP] How to fix the collision code?

Hello Flashkit, the code work, but dont perfectly, when the player hillside on the diagonals of a other object, he is pushed in a weird way, is a bug. The code is this:

PHP Code:

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         while (_root.object.hitTest(this._x - this._width / 2, this._y, true))
        {
            this._x += 5;
        }
        while (_root.object.hitTest(this._x + this._width / 2, this._y, true))
        {
            this._x -= 5;
        }
        while (_root.object.hitTest(this._x, this._y - this._height / 2, true))
        {
            this._y += 5;
        }
        while (_root.object.hitTest(this._x, this._y + this._height / 2, true))
        {
            this._y -= 5;
        } 


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