Java calling JavaScript

I have a peculiar problem. ..
i need to call a javascript function from jsp and get the string value returned by the function...
i am calling the function like this
<BODY BGCOLOR="#FDF5E6" onload="respPrompt('<%=line%>')"> in jsp file
here is the function..
script language="JavaScript">
function respPrompt(line) {
alert("hello")
var favorite = prompt('Edit the line?',line);
if (favorite) alert("edited line is s: " + favorite);
else alert("You pressed Cancel or no value was entered!");
return favorite;
</script>
i need to get hold of the value "favorite" in the jsp programm...and need to write it to a file...am doing this since i cannot handle files from inside a javascript function....
plz gimme ur suggestions..
thanks
rao

Java runs on the server
javascript runs on the client in the web-browser.
The only communication between the two is via http.
You send a request (with request parameters)
You receive a response in the form of an HTML page.
Thats all the communication there is.
Java can't call javascript, and javascript can't call java.
If you need to prompt the user for info, send back an html page asking for that info, and then have them submit that result back to another servlet/jsp
Cheers,
evnafets

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Java Applet call javascript problem

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================================================================
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On first look:
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Calling javascript from java

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Vema,
you cannot go this way. Let me copy/paste the piece of my code:
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Sorry, Javascript is not Java and for sure not JSF.
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