i have build a function in jquery

2. $(document).ready(function() {
3. var work;
4. $('#subject').keyup(function(e) {
5. work = $('#subject').val();
6. if(e.which == 13)
7. work +="  <br/>  ";
8. });
9. });

My question is ,

How can i use the variable "work"  in JSP

for exemple if i want to setAttribute that the content of the attribute will takken from the variable "work"

is it possible?

and ides?