fix some more session weirdness by deleting loggedin cookies instead of piling...

fix some more session weirdness by deleting loggedin cookies instead of piling them up on top of each other

lib/session.php

@@ -41,7 +41,9 @@ private $datahash='';		// hash of data field
 		$token = $this->genSessionID(); 
 		$DB->Execute("insert into {$this->table} (hash, lastseen, ip) values (?,NOW(),?)", array($token, $_SERVER['REMOTE_ADDR']));
 		setcookie("sucssite_session", $token, NULL, "/", $preferred_hostname);
-		setcookie("sucssite_loggedin", "false", time());
+	
+		// delete loggedin cookie if it exists
+		setcookie("sucssite_loggedin", FALSE, time(), "/");
 		$this->token = $token;
 		return;
 	}
@@ -192,7 +194,7 @@ private $datahash='';		// hash of data field
 		$DB->Execute("delete from {$this->table} where hash=?", array($this->token));
 		$this->newsession();
 		$this->loggedin = FALSE;
-		setcookie("sucssite_loggedin", "false");
+		setcookie("sucssite_loggedin", FALSE, time(), "/");
 	}
 
 	// Fill out any extra details we know about the user