Using selected items from drop-down list in rest of page

Hi,
I hope I'm able to describe clearly what's the problem.
So I'm implementing a form for the moment. It contains a drop-down list. The user has to select one item from it and as a result another drop-down list on the same page needs to be filled with a couple of options. I wanna do this without refreshing the page, cos else I have to retrieve all the values from boxes that were allready filled in. Is it possible?
Greetings,
Raf

This cn be done with javascript. But you need to cache the data on first load of your jsp.
regards

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Using selected items from drop-down list in rest of page

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