In this page, I've programmed a prey for the spider: a little bird. When she is trying to tantalize with the gold string, she never knows that the spider alerted by the signal would jump up on her from blow. Fortunately, I've not endowed the spider the hunting ability yet, and he can not grab the bird at this moment.

My experience with the two most popular browsers is: NN4 reacts very slowly or unstably with java and javascript. If your computer slows down at the this stage while you are using NN4, I won't be suriprised. Once I was testing this site with an old computer i.e. 486/66hz/16Ram, using NN4, know what? The screen locks. I have to restart the program. At present, IE4 is in a much advanced position in supporting dhtml, that's why I've suggested you use IE4 to navigate this site.

In the next example, the spider will have an ability to catch the bird. Please click the index or the bird when she is still flying on top of the window.