Working on my [f]orm

SELECT * FROM gallery2 WHERE topic_id="762710" UNION SELECT * FROM gallery2 WHERE topic_id="1253149" UNION SELECT * FROM gallery2 WHERE topic_id="1110577" UNION SELECT * FROM gallery2 WHERE topic_id="1500770" UNION SELECT * FROM gallery2 WHERE topic_id="1735966" UNION SELECT * FROM gallery2 WHERE topic_id="906301" UNION SELECT * FROM gallery2 WHERE topic_id="1741035" UNION SELECT * FROM gallery2 WHERE topic_id="291779" UNION SELECT * FROM gallery2 WHERE topic_id="1541256" UNION SELECT * FROM gallery2 WHERE topic_id="422622" UNION SELECT * FROM gallery2 WHERE topic_id="991591" UNION SELECT * FROM gallery2 WHERE topic_id="278904" UNION SELECT * FROM gallery2 WHERE topic_id="757874" UNION SELECT * FROM gallery2 WHERE topic_id="1045209" UNION SELECT * FROM gallery2 WHERE topic_id="263332" UNION SELECT * FROM gallery2 WHERE topic_id="1445837"