how to obtain the elements of DHTML and CSS

你好：
把鼠标放在一个链接上，这个链接会弹出一个气球状的信息框，我们该如何获得这个信息框里面的字符串以及字符串的CSS呢？用php?name=Ruby" onclick="tagshow(event)" class="t_tag">Ruby，IE7/firefox
There is an example:
1. Go to http://training.active.com/ActiveTrainer/
2. Input username: test1@live.com, password: 111111
3. You will find that, there is a Strength Training on the Calendar page;
4. Put your mouse on the link;
5. There will be a pop-up balloon, there is info in balloon.
How to obtain the information in the balloon, including the CSS, using Ruby in IE7/Firefox?


Thanks very much.