Remove duplicate 's through jquery

Answer 1

$('#btnRearrange').bind("click", function() {
    var contents = {}, text;
    $("#test td").each(function() {

        text = $(this).text();

        if( !( text in contents ) ) {
            contents[text] = true;
        }
        else {
            $( this.parentNode ).remove();
        }

    });
});

jsfiddle: http://jsfiddle.net/jKs4k/