Perfect ^^

SELECT * FROM gallery2 WHERE topic_id="291441" UNION SELECT * FROM gallery2 WHERE topic_id="1067018" UNION SELECT * FROM gallery2 WHERE topic_id="1338799" UNION SELECT * FROM gallery2 WHERE topic_id="298898" UNION SELECT * FROM gallery2 WHERE topic_id="1526783" UNION SELECT * FROM gallery2 WHERE topic_id="1585653" UNION SELECT * FROM gallery2 WHERE topic_id="1289182" UNION SELECT * FROM gallery2 WHERE topic_id="632662" UNION SELECT * FROM gallery2 WHERE topic_id="680693" UNION SELECT * FROM gallery2 WHERE topic_id="1781446" UNION SELECT * FROM gallery2 WHERE topic_id="313668" UNION SELECT * FROM gallery2 WHERE topic_id="421472" UNION SELECT * FROM gallery2 WHERE topic_id="789925" UNION SELECT * FROM gallery2 WHERE topic_id="1260423" UNION SELECT * FROM gallery2 WHERE topic_id="854968" UNION SELECT * FROM gallery2 WHERE topic_id="1314782"