Untitled

<html>
<!--...
many code
...-->
    <button onclick="alert($('#mytable').html().wrap('<html/>') );">Show HTML Table</button>

    <table id="myTable">

        <tr's and td's>
    </table>
<!--...
many code
...-->
</html>

var html = ['<html><body>',
            $('<div/>').append($('#mytable').clone()).html(),
            '</body></html>'].join('');

$('#mytable').clone()...

(function($) {
    $.fn.outerhtml = function() {
        return $('<div/>').append(this.clone()).html();
    };
})(jQuery);

alert('<html>' + $('#myTable').outerhtml() + '</html>');

alert('<html>'+$('#mytable').html()+'</html>');

$("#myTable").wrap("...");