/*
	- Get Gravatar URL
	- Get the URL for a gravatar attached to someone's email address to be used
	  in the <img> tag.
	  
	$email     - The email to fetch the gravatar of.
	$size      - The size of the gravatar to be fetched (default 40 pixels)
	*/
	
	public function getGravatarURL($email, $size = 40) {
		$email = md5(trim($email));
		$grav_url = "http://www.gravatar.com/avatar/" . $email . "?s=" . $size;
		return $grav_url;
	}