function image_reproportion()
	{
		if ( ! is_numeric($this->width) OR ! is_numeric($this->height) OR $this->width == 0 OR $this->height == 0)
			return;

		if ( ! is_numeric($this->orig_width) OR ! is_numeric($this->orig_height) OR $this->orig_width == 0 OR $this->orig_height == 0)
			return;

		$new_width	= ceil($this->orig_width*$this->height/$this->orig_height);
		$new_height	= ceil($this->width*$this->orig_height/$this->orig_width);

		$ratio = (($this->orig_height/$this->orig_width) - ($this->height/$this->width));

		if ($this->master_dim != 'width' AND $this->master_dim != 'height')
		{
			$this->master_dim = ($ratio < 0) ? 'width' : 'height';
		}

		if (($this->width != $new_width) AND ($this->height != $new_height))
		{
			if ($this->master_dim == 'height')
			{
				$this->width = $new_width;
			}
			else
			{
				$this->height = $new_height;
			}
		}
	}