public function setImageUrl($imageUrl = '')
	{
		$this->imageUrl = $imageUrl;
		$imageSizes = @getimagesize($this->imageUrl);
		if ($imageSizes)
		{
			list($this->imageWidth, $this->imageHeight) = $imageSizes;
		}
		else
		{
			$this->setError('Unable to get details of image');
		}
	}