Open PDF in browser - but cant control/close window from javascript

Question

Hi
I hope I picked the correct forum
Basically I have a site in asp classic. From a button I opens 2
windows via javascript.
One contains info, one shows a related file ( could be tiff or pdf ).
When user closes info-window, I also close the file window via javascript, so that user only hav to click once.
That works with tiff, but not with pdf, '!file.closed' returns that window are already closed.
Somehow I simply loose contact to that window when I open pdf.
My Adobe is set  with "open pdf in browser", version 10.1.2
Any Ideas ?
Overview what I do:
function openTwoWindows(jnr,vikar,hvorfra){
          var left, top,vikar;
          width = (window.screen.availWidth/2)+80;
          width2 = (window.screen.availWidth/2)-80;
          height  = (window.screen.availHeight);
          info = window.open('info.asp'','top=0,left=0,height='+height+',width='+width+',resizable=yes,scr ollbars=yes,status=yes');
          var settings= 'toolbar=no,location=no,directories=no,'+
          'status=no,menubar=no,scrollbars=no,resizable=yes, top=0, left='+width+', height='+height+',width='+width2;
          file = window.open('showfile.asp?strJnr='+jnr+'&print=false','file',settings);
          info.focus();
function closeFileWindow(){
            if(file && !file.closed){
                         file.close();
if the file is a pdf -> showfile code in asp classic:
Response.AddHeader "Content-Disposition","inline;filename=filename.pdf"
Response.ContentType = "Application/pdf"
'Response.Clear
Response.Buffer = true
// fetch file from database
Response.BinaryWrite rsTmp("Fil")
Response.Flush
Response.End

Answer 1

Read this:
http://forums.adobe.com/thread/535609?tstart=0