print a div through javascript.

<script type="text/javascript">
        $("#btnPrint").live("click", function () {
            var divContents = $("#dvContainer").html();
            var printWindow = window.open('', '', 'height=400,width=800');
         
            printWindow.document.write(divContents);
         
            printWindow.document.close();
            printWindow.print();
        });
</script>

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