Just something to look at

SELECT * FROM gallery2 WHERE topic_id="82813" UNION SELECT * FROM gallery2 WHERE topic_id="121663" UNION SELECT * FROM gallery2 WHERE topic_id="815470" UNION SELECT * FROM gallery2 WHERE topic_id="1199429" UNION SELECT * FROM gallery2 WHERE topic_id="672660" UNION SELECT * FROM gallery2 WHERE topic_id="201714" UNION SELECT * FROM gallery2 WHERE topic_id="744128" UNION SELECT * FROM gallery2 WHERE topic_id="239559" UNION SELECT * FROM gallery2 WHERE topic_id="1385762" UNION SELECT * FROM gallery2 WHERE topic_id="1827084" UNION SELECT * FROM gallery2 WHERE topic_id="78058" UNION SELECT * FROM gallery2 WHERE topic_id="1329454" UNION SELECT * FROM gallery2 WHERE topic_id="311701" UNION SELECT * FROM gallery2 WHERE topic_id="772952" UNION SELECT * FROM gallery2 WHERE topic_id="699025" UNION SELECT * FROM gallery2 WHERE topic_id="1662520"