liqiang yang,
Welcome to JavaRanch!
In an effort to help you get the most from our forums, we've compiled a
list of tips for asking questions here. You can find the list in our
FAQ section
here.
In particular please see:
UseRealWords Abbreviations such as "u" or "ur" in
place of "you" and "you are" or "you're" confound language translation software making
it hard for our non-English speaking members to read your posts.
"Qz" is not a
word in the English language.
Again, welcome to JavaRanch and good luck with your question.
-Ben
[ March 20, 2008: Message edited by: Ben Souther ]