tips = new Array(3);
tips[0] = "<a href='http://www.princetonreview.com.tw/targeted/tl-courses.htm#schedules'><img src='http://www.princetonreview.com.tw/images/targeted-learning-234x60.gif' alt='Targeted Learning Courses' border='0'></a>";
tips[1] = "<a href='http://www.princetonreview.com.tw/college/sat-courses.htm#schedules'><img src='http://www.princetonreview.com.tw/images/SAT-234x60.gif' alt='SAT Strategy Course' border='0'></a>";
tips[2] = "<a href='http://www.princetonreview.com.tw/secondary/index.html#schedules'><img src='http://www.princetonreview.com.tw/images/SSAT-234x60.gif' alt='SSAT Strategy Course' border='0'></a>";
index = Math.floor(Math.random() * tips.length);
document.write(tips[index]);