- $this->_imagestring($this->img, $this->size, ((($x1+$x2)/2) - (strlen($this->axis_x)*7/2)), $y, $this->axis_x, $this->color['title']);
+ $this->_imagestring($this->img, $this->size, ((($x1+$x2)/2) - (strlen($this->axis_x)*7/2)), $y,
+ $this->axis_x." (".$this->graphic_1.")", $this->color['title']);