tips = new Array(5);
tips[0] = "<a href='http://www.princetonreview.com.tw/toefl/toefl-courses.htm#schedules'><img src='http://www.princetonreview.com.tw/images/TOEFL-ibt-234x60.gif' alt='TOEFL Weekend Strategy Course' border='0'></a>";
tips[1] = "<a href='http://www.princetonreview.com.tw/mba/gmat-courses.htm#schedules'><img src='http://www.princetonreview.com.tw/images/GMAT-strategy-234x60.gif' alt='GMAT Strategy Course' border='0'></a>";
tips[2] = "<a href='http://www.princetonreview.com.tw/PDFs/2009-2010-UEP-schedules.pdf'><img src='http://www.princetonreview.com.tw/images/university-eng-234x60.gif' alt='UEP Course' border='0'></a>";
tips[3] = "<a href='http://www.princetonreview.com.tw/grad/gre-courses.htm#schedules'><img src='http://www.princetonreview.com.tw/images/GRE-strategy-234x60.gif' alt='GRE Course' border='0'></a>";
tips[4] = "<a href='http://www.princetonreview.com.tw/law/lsat-courses.htm#schedules'><img src='http://www.princetonreview.com.tw/images/LSAT-strategy-234x60.gif' alt='LSAT Course' border='0'></a>";
index = Math.floor(Math.random() * tips.length);
document.write(tips[index]);