sQuery = this.dataSource.mentionQuery;

            }

            var query = sQuery.toLowerCase();

            var _gravatar = function(res, em, group){

                if (group !== undefined){

                    em = '/images/icons/group.png'

                }

                tmpl = '<div class="ac-container-wrap"><img class="perm-gravatar-ac" src="{0}"/>{1}</div>'

                return tmpl.format(em,res)

            }

            if (oResultData.nname != undefined) {

                var fname = oResultData.fname || "";

                var lname = oResultData.lname || "";

                var nname = oResultData.nname;

                // Guard against null value

                var fnameMatchIndex = fname.toLowerCase().indexOf(query),

                    lnameMatchIndex = lname.toLowerCase().indexOf(query),

                    nnameMatchIndex = nname.toLowerCase().indexOf(query),

                    displayfname, displaylname, displaynname;

                if (fnameMatchIndex > -1) {

                    displayfname = highlightMatch(fname, query, fnameMatchIndex);

                } else {

                    displayfname = fname;

                }

                if (lnameMatchIndex > -1) {

                    displaylname = highlightMatch(lname, query, lnameMatchIndex);

                } else {

                    displaylname = lname;

                }

                if (nnameMatchIndex > -1) {

                    displaynname = "(" + highlightMatch(nname, query, nnameMatchIndex) + ")";

                } else {

                    displaynname = nname ? "(" + nname + ")" : "";

                }

                return _gravatar(displayfname + " " + displaylname + " " + displaynname, oResultData.gravatar_lnk);

            } else {

                return '';

            }

        };

    if(ownerAC.itemSelectEvent){

        ownerAC.itemSelectEvent.subscribe(function (sType, aArgs) {

            var myAC = aArgs[0]; // reference back to the AC instance

            var elLI = aArgs[1]; // reference to the selected LI element

            var oData = aArgs[2]; // object literal of selected item's result data

            //fill the autocomplete with value

            if (oData.nname != undefined) {

                //users

                //Replace the mention name with replaced

                var re = new RegExp();

                var org = myAC.getInputEl().value;

                var chunks = myAC.dataSource.chunks

                // replace middle chunk(the search term) with actuall  match

                chunks[1] = chunks[1].replace('@'+myAC.dataSource.mentionQuery,

                                              '@'+oData.nname+' ');

                myAC.getInputEl().value = chunks.join('')

                myAC.getInputEl().focus(); // Y U NO WORK !?

            } else {

                //groups

                myAC.getInputEl().value = oData.grname;

                $('#perm_new_member_type').val('users_group');

            }

        });

    }

    // in this keybuffer we will gather current value of search !

    // since we need to get this just when someone does `@` then we do the

    // search

    ownerAC.dataSource.chunks = [];

    ownerAC.dataSource.mentionQuery = null;

    ownerAC.get_mention = function(msg, max_pos) {

        var org = msg;

        var re = new RegExp('(?:^@|\s@)([a-zA-Z0-9]{1}[a-zA-Z0-9\-\_\.]+)$')

        var chunks  = [];

        // cut first chunk until curret pos

        var to_max = msg.substr(0, max_pos);

        var at_pos = Math.max(0,to_max.lastIndexOf('@')-1);

        var msg2 = to_max.substr(at_pos);

        chunks.push(org.substr(0,at_pos))// prefix chunk

        chunks.push(msg2)                // search chunk

        chunks.push(org.substr(max_pos)) // postfix chunk

        // clean up msg2 for filtering and regex match

        var msg2 = msg2.lstrip(' ').lstrip('\n');

        if(re.test(msg2)){

            var unam = re.exec(msg2)[1];

            return [unam, chunks];

        }

        return [null, null];

    };

            var unam = ownerAC.get_mention(currentMessage, currentCaretPosition);

            var curr_search = null;

            if(unam[0]){

                curr_search = unam[0];

            }

            ownerAC.dataSource.chunks = unam[1];

            ownerAC.dataSource.mentionQuery = curr_search;

}

var addReviewMember = function(id,fname,lname,nname,gravatar_link){

    var displayname = "{0} {1} ({2})".format(fname, lname, nname);

    var element = (

        '     <li id="reviewer_{2}">\n'+

        '       <div class="reviewers_member">\n'+

        '           <div class="reviewer_status tooltip" title="not_reviewed">\n'+

        '             <img src="/images/icons/flag_status_not_reviewed.png"/>\n'+

        '           </div>\n'+

        '         <div class="reviewer_gravatar gravatar"><img alt="gravatar" src="{0}"/> </div>\n'+

        '         <div style="float:left;">{1}</div>\n'+

        '         <input type="hidden" value="{2}" name="review_members" />\n'+

        '         <div class="reviewer_member_remove action_button" onclick="removeReviewMember({2})">\n'+

        '             <i class="icon-remove-sign" style="color: #FF4444;"></i>\n'+

        '         </div>\n'+

        '       </div>\n'+

        '     </li>\n'

        ).format(gravatar_link, displayname, id);

    // check if we don't have this ID already in

    var ids = [];

    $('#review_members').find('li').each(function() {

            ids.push(this.id);

        });

    if(ids.indexOf('reviewer_'+id) == -1){

        //only add if it's not there

        $('#review_members').append(element);

    }

}

var removeReviewMember = function(reviewer_id, repo_name, pull_request_id){

    $('#reviewer_{0}'.format(reviewer_id)).remove();

}

/* handle "Save Changes" of addReviewMember and removeReviewMember on PR */

var updateReviewers = function(reviewers_ids, repo_name, pull_request_id){

    if (reviewers_ids === undefined){

        var reviewers_ids = [];

        $('#review_members').find('input').each(function(){

                reviewers_ids.push(this.value);

            });

    }

    var url = pyroutes.url('pullrequest_update', {"repo_name":repo_name,

                                                  "pull_request_id": pull_request_id});

    var postData = {'_method':'put',

                    'reviewers_ids': reviewers_ids};

    var success = function(o){

        window.location.reload();