Nowid = 74004; while (num <= totalnum){ tempid = dataid[num]; //document.write (tempid) + "
"; if (Nowid == tempid) break; num++; } if (num>1){ previewnum = num - 1; }else{ previewnum = 0; } if (num"; document.write(previewhtml); } //next information if (nextnum !=0){ nexthtml = "" + info[nextnum] + ""; document.write(nexthtml); } }