Returning values from JavaScript functions

I'm trying to use JavaScript to do some interesting things. However, I'd like to do *something* with what is generated.

For example, if I have a simple JavaScript function that I specify to return a string e.g. "hello", how can I get that return value and put it in a JSP variable.

If this is not possible then so be it, but I'm sure it can be done.

Thanks in advance

HD

Code:

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function returnSomething($1,$2){
        return $1 + $2;
}

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Sorry... didn't read the question fully. I don't know about JSP but in ASP I use alot of querystring passing to transfer client side variables to server side.
Michael

What do you mean?

I've basically got a situation where I need to pass an array of variables from a JSP to another page. I've been looking into the javascript side because it might have been useful.

How can you pass an object (in this case an array of strings) across pages?

Thanks again

HD

Well, like I said I don't know JSP but in ASP I use the javascript window.open then in the page I opened I read in the varables I passed via the query string. I use window open cos I do a wierd this w/hidden frames alot so you would pass it however you normaly open the new page.
page 1 (blah in this example will be the value that you pass to the function.

Code:

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window.open('page2.asp?Var1' + blah);

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page2 (this is ASP, I don't know JSP)

Code:

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strVar1 = Request.QueryString("Var1")

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Hope that makes sense :)
Michael

as for an array that might be different... you may have to unload it and pass one at a time and reload into an array on the other side.

Thanks. I've done some of that - you can use the request.getParameterValues("param") etc. functions in JSP, but its pretty much the same.

I was hoping to not have to pass the array elements one by one - but we'll have to see.

Thanks again.

HD