Xender, slow down your posts, try to think about a bunch of questions you're going to ask and then organize them into 1 thread.
Also, im sure I speek for a majority of the forumers here that will try to help you when I say, please put forward some effort into accomplishing a goal yourself, instead of using the other programmers around here as a tool. This forum should be your last resort, instead of asking "how do I do this", try asking "here's my code, how would I make this section work better?", you'll find you'll get a lot more answers if you actually show some work on your side.
(Seriously, you're posting a lot of threads, slow it down).