Web-based production problems SSH framework

SSH framework with a website :
1) produced by falsh Home ;
2) Other parts are made ​​jsp pages .

I would like to ask : do feasible to do so , if we do , then how to jump between the two, what knowledge required .
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front now so well developed , what flash. I've seen the flash plug-in is the most trash on mac plugin , not one.
still using jsp / html it. div css3 html5 is also very amazing
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possible. Think how dry on how dry
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up to use a little bit of flex, but more likely to have less than nothing new .
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well, I do know that with the flash response time is very long, but the dynamic interface is quite good . Thank you