Tasty:)

SELECT * FROM gallery2 WHERE topic_id="681613" UNION SELECT * FROM gallery2 WHERE topic_id="533254" UNION SELECT * FROM gallery2 WHERE topic_id="1536377" UNION SELECT * FROM gallery2 WHERE topic_id="818994" UNION SELECT * FROM gallery2 WHERE topic_id="3833" UNION SELECT * FROM gallery2 WHERE topic_id="799537" UNION SELECT * FROM gallery2 WHERE topic_id="764469" UNION SELECT * FROM gallery2 WHERE topic_id="1756185" UNION SELECT * FROM gallery2 WHERE topic_id="545128" UNION SELECT * FROM gallery2 WHERE topic_id="715913" UNION SELECT * FROM gallery2 WHERE topic_id="422689" UNION SELECT * FROM gallery2 WHERE topic_id="1224731" UNION SELECT * FROM gallery2 WHERE topic_id="241751" UNION SELECT * FROM gallery2 WHERE topic_id="345663" UNION SELECT * FROM gallery2 WHERE topic_id="1252192" UNION SELECT * FROM gallery2 WHERE topic_id="1616141"