jQuery wrapper for retiring comment count via SharePoint Social Data Web Service

socialservice_commentscount.js

function CountCommentsOnUrl(url,result)
{
     var soapEnv =
        "<soap:Envelope xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'> \
              <soap:Body>    \
                    <CountCommentsOnUrl xmlns='http://microsoft.com/webservices/SharePointPortalServer/SocialDataService'> \
                                <url>" + url + "</url> \
                     </CountCommentsOnUrl> \
              </soap:Body> \
         </soap:Envelope>";

    $.ajax({
        pageurl: url,
        result: result,
        url: "/_vti_bin/SocialDataService.asmx?op=CountCommentsOnUrl",
        type: "POST",
        dataType: "xml",
        data: soapEnv,
        contentType: "text/xml; charset=\"utf-8\"",
        success: function(data, status, xhr){
           if(this.result !== undefined) {
              var commentCount = $('CountCommentsOnUrlResponse', data).find('CountCommentsOnUrlResult').text();
              this.result(commentCount);
           }    
        }
    });
}

$(function() {
   $('span.comments').each(function() {
        var pageUrl = $(this).attr('pageurl');
        var comment = $(this);
        CountCommentsOnUrl(pageUrl,function(commentCount){
           comment.text(commentCount);
        });
        
   });
});