Javascript window Print

   Telerik.Web.UI.Editor.CommandList["Print"] = function (commandName, editor, args) {

        var prtContent = editor.get_contentArea();

        var WinPrint = window.open('', '', 'left=0,top=0,width=800,height=900,toolbar=0,scrollbars=0,status=0');

        WinPrint.document.write(prtContent.innerHTML);

        WinPrint.document.close();

        WinPrint.focus();

        WinPrint.print();

        setTimeout(function () {

            WinPrint.close();

        }, 1000);

    };