"\R\n" part is ignored

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Javascript

inserting CrLf in JAVA string does not work
My code

function printpage()
        {
            var originalContents = document.body.innerHTML;
            var printReport = document.getElementById('textbox1').innerHTML;  ///Content to be printed
            printReport = printReport + "\r\n" + 'Adding some other text';
            document.body.innerHTML = printReport;
            window.print();
            document.body.innerHTML = originalContents;
        }

the "\r\n" part is ignored - why? Solution for this problem?
Am running on Windows IIS server.

What I have tried:

printing without CrLf works nicely, but no difference when inserting CrLf. All on same line.