Declare a js variable which will be accessed my 2 jsps
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I have a requirement in which I have to assign a value to a variable which should be accessed by another jsp which will be called from that jsp.
Elaboration :

I have an html field, which is a dropdown whose list values are always constant.
The significance of it is, another field is dependent on it.

So from a page if the value is selected, it goes to a different jsp(via action).
I want the dropdown selection to persist in the next page.
Please suggest anythig. 