leahda

Just edit and insert the lines you mentioned, as I remember.

I found the root cause.

IE doesn’t like the new window name to have spacebar. So we must change this line
w=window.open(null, 'Print_Page', 'scrollbars=yes');

Then we still cannot print yet. There must be this line
w.document.close();
before the print command
w.print();

Now it works.