how to give print button from gridview on button click when using master page

<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
<script type="text/javascript">

    function PrintGridData() {
        var prtGrid = document.getElementById('grdreport');
        prtGrid.border = 0;
        var prtwin = window.open('', 'PrintGridViewData', 'left=100,top=100,width=1000,height=1000,tollbar=0,scrollbars=1,status=0,resizable=1');
        prtwin.document.write(prtGrid.outerHTML);
        prtwin.document.close();
        prtwin.focus();
        prtwin.print();
        prtwin.close();
    }
</script>
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:GridView ID="grdreport" runat="server" ></asp:GridView>
</asp:Content>