Changing link attributes from a popup window

I have a problem changing onlick, onmouseover and onmouseout attributes of a link in a page from a popup window opened by this page.

In the popup window I have this code:

element = window.opener.document.getElementById('link_id');

element.onclick = function () {
  pop_width  = 340;
  pop_height = 450;
  hspace = ( screen.width - pop_width ) / 2;
  vspace = ( screen.height - pop_height ) / 2;
  parameters = 'resizable=no,scrollbars=no,width=' + pop_width + ',height=' + pop_height + ',left=' + hspace + ',top=' + vspace;
  window.opener.open ( 'page.htm'', 'title', parameters );
}

element.onmouseover = function () {
  window.opener.status = 'a_string';
  return true;
}

element.onmouseout = function () {
  window.opener.status = '';
  return true;
}

Code (markup):

The problem is that this code only works if the popup window remains open.
If I close it, it stops working. What can I do???

 

You should put this code into the parent window. Once your popup is closed, this code is no longer active.

 

Already done and it works!
Thank you anyway!!!