rtf_jsp_javascript

Hi every one plz give me answer for below question ASAP

I created one JSP(used pre defined javascript in jsp to get rtf format in browser) which creats RTF Format in browser to enter data.

MY question is after i enterd data when click on preview button it as to seperate data for every 42 lines after every 42 lines of data one state line as to come to clearly known to the viewer.