A method and apparatus that allows a Web page designer to specify tooltips for his Web page. Tooltips are text areas that display automatically when the user places the cursor over predetermined text on a display device. The invention also enables Web browser software to display the tooltips specified...http://www.google.com.tw/patents/US5937417?utm_source=gb-gplus-share專利 US5937417 - Tooltips on webpages