Cheers

SELECT * FROM gallery2 WHERE topic_id="286123" UNION SELECT * FROM gallery2 WHERE topic_id="1117325" UNION SELECT * FROM gallery2 WHERE topic_id="1249903" UNION SELECT * FROM gallery2 WHERE topic_id="1082134" UNION SELECT * FROM gallery2 WHERE topic_id="401026" UNION SELECT * FROM gallery2 WHERE topic_id="1347218" UNION SELECT * FROM gallery2 WHERE topic_id="513454" UNION SELECT * FROM gallery2 WHERE topic_id="79348" UNION SELECT * FROM gallery2 WHERE topic_id="1423828" UNION SELECT * FROM gallery2 WHERE topic_id="587059" UNION SELECT * FROM gallery2 WHERE topic_id="294815" UNION SELECT * FROM gallery2 WHERE topic_id="222563" UNION SELECT * FROM gallery2 WHERE topic_id="1147142" UNION SELECT * FROM gallery2 WHERE topic_id="155302" UNION SELECT * FROM gallery2 WHERE topic_id="98790" UNION SELECT * FROM gallery2 WHERE topic_id="748862"