maintaining data on form

[megabyte214]

I have a form and within the form there are links that pop-up another window to display information. When the pop-up is closed, all the previous information in the form is erased because the page reloads. I am wondering how to do this so that the page does not refresh when the pop-up is clicked and the information is not lost.
Here is the code, I am using PL/SQL:
javascript function

function newWindow(title)
  {
    
    parent.location.href="students.display_description?s_title="+title;
  }

call to javascript function

htp.p('<a href="#courses"  onClick="newWindow('''||CourseSelectionInfoTable(v_Counter).v_course_title||''');">');
htp.p(CourseSelectionInfoTable(v_Counter).v_course_title || '</U></B></FONT><BR>');
htp.p('</a>');

pl/sql procedure called from javascript function

PROCEDURE display_description(s_title in varchar2 default null)
is
  
  v_description                         course.description%TYPE;
 
BEGIN

  select course.description into v_description 
  from course 
  where course.title = s_title;

  htp.p('<script language = "javascript">
  newWindow = window.open("", "NewWindow","width=800,height=500,scrollbars=yes,location=no") ;
  newWindow.document.write("<h2>'||s_title||'</h2>");
  newWindow.document.write('''||v_description||''');</script>');

  htp.p('<script language = "javascript">parent.location.href="students.form_new?year=2005#courses";</script>');


end display_description;