there is a tool called htmlparser, it can parse html , but as other paser tools ,it can't parse javascript.
only get its jar ,and put jar file into your project , it will work.
i am studying "programming spiders,bots,and aggregators in java", this is a very good book, and its example also good, but it is pity that i found this book so late, two weeks ago,i just found this book in internet. in 10days ,i have studied 7 chapters . it is helpful to my job. so thanks !

beijing china
philip wang