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('')

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

            } else {

                //groups

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

                YUD.get('perm_new_member_type').value = '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];

    };

    if (ownerAC.textboxKeyUpEvent){

        ownerAC.textboxKeyUpEvent.subscribe(function(type, args){

            var ac_obj = args[0];

            var currentMessage = args[1];

            var currentCaretPosition = args[0]._elTextbox.selectionStart;

            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;

        })

    }

    return {

        ownerDS: ownerDS,

        ownerAC: ownerAC,

    };

}

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

    var members  = YUD.get('review_members');

    var tmpl = '<li id="reviewer_{2}">'+

    '<div class="reviewers_member">'+

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

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

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

      '<span class="delete_icon action_button" onclick="removeReviewMember({2})"></span>'+

    '</div>'+

    '</li>' ;

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

    var element = tmpl.format(gravatar_link,displayname,id);

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

    var ids = [];

    var _els = YUQ('#review_members li');

    for (el in _els){

        ids.push(_els[el].id)

    }

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

        //only add if it's not there

        members.innerHTML += element;

    }

}

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

    var el = YUD.get('reviewer_{0}'.format(reviewer_id));

    if (el.parentNode !== undefined){

        el.parentNode.removeChild(el);

    }

}

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

    if (reviewers_ids === undefined){

      var reviewers_ids = [];

      var ids = YUQ('#review_members input');

      for(var i=0; i<ids.length;i++){

          var id = ids[i].value

          reviewers_ids.push(id);

      }

    }

    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();

    }

    ajaxPOST(url,postData,success);

}

var PullRequestAutoComplete = function (divid, cont, users_list, groups_list) {

    var myUsers = users_list;

    var myGroups = groups_list;

    // Define a custom search function for the DataSource of users

    var matchUsers = function (sQuery) {

            // Case insensitive matching

            var query = sQuery.toLowerCase();

            var i = 0;

            var l = myUsers.length;

            var matches = [];

            // Match against each name of each contact

            for (; i < l; i++) {

                contact = myUsers[i];

                if (((contact.fname+"").toLowerCase().indexOf(query) > -1) ||

                     ((contact.lname+"").toLowerCase().indexOf(query) > -1) ||

                     ((contact.nname) && ((contact.nname).toLowerCase().indexOf(query) > -1))) {

                       matches[matches.length] = contact;

                   }

            }

            return matches;

        };

    // Define a custom search function for the DataSource of userGroups

    var matchGroups = function (sQuery) {

            // Case insensitive matching

            var query = sQuery.toLowerCase();

            var i = 0;

            var l = myGroups.length;

            var matches = [];

            // Match against each name of each contact

            for (; i < l; i++) {

                matched_group = myGroups[i];

                if (matched_group.grname.toLowerCase().indexOf(query) > -1) {

                    matches[matches.length] = matched_group;

                }

            }

            return matches;

        };

    //match all

    var matchAll = function (sQuery) {

            u = matchUsers(sQuery);

            return u

        };

    // DataScheme for owner

    var ownerDS = new YAHOO.util.FunctionDataSource(matchUsers);

    ownerDS.responseSchema = {

        fields: ["id", "fname", "lname", "nname", "gravatar_lnk"]

    };

    // Instantiate AutoComplete for mentions

    var reviewerAC = new YAHOO.widget.AutoComplete(divid, cont, ownerDS);

    reviewerAC.useShadow = false;

    reviewerAC.resultTypeList = false;

    reviewerAC.suppressInputUpdate = true;

    reviewerAC.animVert = false;

    reviewerAC.animHoriz = false;

    reviewerAC.animSpeed = 0.1;

    // Helper highlight function for the formatter

    var highlightMatch = function (full, snippet, matchindex) {

            return full.substring(0, matchindex)

            + "<span class='match'>"

            + full.substr(matchindex, snippet.length)

            + "</span>" + full.substring(matchindex + snippet.length);

        };

    // Custom formatter to highlight the matching letters

    reviewerAC.formatResult = function (oResultData, sQuery, sResultMatch) {

            var org_sQuery = sQuery;

            if(this.dataSource.mentionQuery != null){

                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 '';

            }

        };

    //members cache to catch duplicates

    reviewerAC.dataSource.cache = [];

    // hack into select event

    if(reviewerAC.itemSelectEvent){

        reviewerAC.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) {

                addReviewMember(oData.id, oData.fname, oData.lname, oData.nname,

                                oData.gravatar_lnk);

                myAC.dataSource.cache.push(oData.id);

                YUD.get('user').value = ''

            }

        });

    }

    return {

        ownerDS: ownerDS,

        reviewerAC: reviewerAC,

    };

}

/**

 * QUICK REPO MENU

 */

var quick_repo_menu = function(){

    YUE.on(YUQ('.quick_repo_menu'),'mouseenter',function(e){

            var menu = e.currentTarget.firstElementChild.firstElementChild;

            if(YUD.hasClass(menu,'hidden')){

                YUD.replaceClass(e.currentTarget,'hidden', 'active');

                YUD.replaceClass(menu, 'hidden', 'active');

            }

        })

    YUE.on(YUQ('.quick_repo_menu'),'mouseleave',function(e){

            var menu = e.currentTarget.firstElementChild.firstElementChild;

            if(YUD.hasClass(menu,'active')){

                YUD.replaceClass(e.currentTarget, 'active', 'hidden');

                YUD.replaceClass(menu, 'active', 'hidden');

            }

        })

};

/**

 * TABLE SORTING

 */

// returns a node from given html;

var fromHTML = function(html){

      var _html = document.createElement('element');

      _html.innerHTML = html;

      return _html;

}

var get_rev = function(node){

    var n = node.firstElementChild.firstElementChild;

    if (n===null){

        return -1

    }

    else{

        out = n.firstElementChild.innerHTML.split(':')[0].replace('r','');

        return parseInt(out);

    }

}

var get_name = function(node){

     var name = node.firstElementChild.children[2].innerHTML;

     return name

}

var get_group_name = function(node){

    var name = node.firstElementChild.children[1].innerHTML;

    return name

}

var get_date = function(node){

    var date_ = YUD.getAttribute(node.firstElementChild,'date');

    return date_

}

var get_age = function(node){

    return node

}

var get_link = function(node){

    return node.firstElementChild.text;

}

var revisionSort = function(a, b, desc, field) {

      var a_ = fromHTML(a.getData(field));

      var b_ = fromHTML(b.getData(field));

      // extract revisions from string nodes

      a_ = get_rev(a_)

      b_ = get_rev(b_)

      var comp = YAHOO.util.Sort.compare;

      var compState = comp(a_, b_, desc);

      return compState;

};

var ageSort = function(a, b, desc, field) {

    var a_ = fromHTML(a.getData(field));

    var b_ = fromHTML(b.getData(field));

    // extract name from table

    a_ = get_date(a_)

    b_ = get_date(b_)

    var comp = YAHOO.util.Sort.compare;

    var compState = comp(a_, b_, desc);

    return compState;

};

var lastLoginSort = function(a, b, desc, field) {

    var a_ = a.getData('last_login_raw') || 0;

    var b_ = b.getData('last_login_raw') || 0;

    var comp = YAHOO.util.Sort.compare;

    var compState = comp(a_, b_, desc);

    return compState;

};

var nameSort = function(a, b, desc, field) {

    var comp = YAHOO.util.Sort.compare;

    var compState = comp(a_, b_, desc);

    return compState;

};

var permNameSort = function(a, b, desc, field) {

    var a_ = fromHTML(a.getData(field));

    var b_ = fromHTML(b.getData(field));

    // extract name from table

    a_ = a_.children[0].innerHTML;

    b_ = b_.children[0].innerHTML;

    var comp = YAHOO.util.Sort.compare;

    var compState = comp(a_, b_, desc);

    return compState;

};

var groupNameSort = function(a, b, desc, field) {

    var a_ = fromHTML(a.getData(field));

    var b_ = fromHTML(b.getData(field));

    // extract name from table

    a_ = get_group_name(a_)

    b_ = get_group_name(b_)

    var comp = YAHOO.util.Sort.compare;

    var compState = comp(a_, b_, desc);

    return compState;

};

var dateSort = function(a, b, desc, field) {

    var a_ = fromHTML(a.getData(field));

    var b_ = fromHTML(b.getData(field));

    // extract name from table

    a_ = get_date(a_)

    b_ = get_date(b_)

    var comp = YAHOO.util.Sort.compare;

    var compState = comp(a_, b_, desc);

    return compState;

};

var usernamelinkSort = function(a, b, desc, field) {

      var a_ = fromHTML(a.getData(field));

      var b_ = fromHTML(b.getData(field));

      // extract url text from string nodes

      a_ = get_link(a_)

      b_ = get_link(b_)

      var comp = YAHOO.util.Sort.compare;

      var compState = comp(a_, b_, desc);

      return compState;

}

var addPermAction = function(_html, users_list, groups_list){

    var elmts = YUD.getElementsByClassName('last_new_member');

    var last_node = elmts[elmts.length-1];

    if (last_node){

       var next_id = (YUD.getElementsByClassName('new_members')).length;

       _html = _html.format(next_id);

       last_node.innerHTML = _html;

       YUD.setStyle(last_node, 'display', '');

       YUD.removeClass(last_node, 'last_new_member');

       MembersAutoComplete("perm_new_member_name_"+next_id,

               "perm_container_"+next_id, users_list, groups_list);

       //create new last NODE

       var el = document.createElement('tr');

       el.id = 'add_perm_input';

       YUD.addClass(el,'last_new_member');

       YUD.addClass(el,'new_members');

       YUD.insertAfter(el, last_node);

    }

}

function ajaxActionRevokePermission(url, obj_id, obj_type, field_id, extra_data) {

    var callback = {

        success: function (o) {

            var tr = YUD.get(String(field_id));

            tr.parentNode.removeChild(tr);

        },

        failure: function (o) {

            alert(_TM['Failed to remoke permission'] + ": " + o.status);

        },

    };

    query_params = {

        '_method': 'delete'

    }

    // put extra data into POST

    if (extra_data !== undefined && (typeof extra_data === 'object')){

        for(k in extra_data){

            query_params[k] = extra_data[k];

        }

    }

    if (obj_type=='user'){

        query_params['user_id'] = obj_id;

        query_params['obj_type'] = 'user';

    }

    else if (obj_type=='user_group'){

        query_params['user_group_id'] = obj_id;

        query_params['obj_type'] = 'user_group';

    }

    var request = YAHOO.util.Connect.asyncRequest('POST', url, callback,

            toQueryString(query_params));

};

/* Multi selectors */

var MultiSelectWidget = function(selected_id, available_id, form_id){

    //definition of containers ID's

    var selected_container = selected_id;

    var available_container = available_id;

    //temp container for selected storage.

    var cache = new Array();

    var av_cache = new Array();

    var c =  YUD.get(selected_container);

    var ac = YUD.get(available_container);

    //get only selected options for further fullfilment

    for(var i = 0;node =c.options[i];i++){

        if(node.selected){

            //push selected to my temp storage left overs :)

            cache.push(node);

        }

    }

    //get all available options to cache

    for(var i = 0;node =ac.options[i];i++){

            //push selected to my temp storage left overs :)

            av_cache.push(node);

    }

    //fill available only with those not in chosen

    ac.options.length=0;

    tmp_cache = new Array();

    for(var i = 0;node = av_cache[i];i++){

        var add = true;

        for(var i2 = 0;node_2 = cache[i2];i2++){

            if(node.value == node_2.value){

                add=false;

                break;

            }

        }

        if(add){

            tmp_cache.push(new Option(node.text, node.value, false, false));

        }

    }

    for(var i = 0;node = tmp_cache[i];i++){

        ac.options[i] = node;

    }

    function prompts_action_callback(e){

        var chosen = YUD.get(selected_container);

        var available = YUD.get(available_container);

        //get checked and unchecked options from field

        function get_checked(from_field){

            //temp container for storage.

            var sel_cache = new Array();

            var oth_cache = new Array();

            for(var i = 0;node = from_field.options[i];i++){

                if(node.selected){

                    //push selected fields :)

                    sel_cache.push(node);

                }

                else{

                    oth_cache.push(node)

                }

            }

            return [sel_cache,oth_cache]

        }

        //fill the field with given options

        function fill_with(field,options){

            //clear firtst

            field.options.length=0;

            for(var i = 0;node = options[i];i++){

                    field.options[i]=new Option(node.text, node.value,

                            false, false);

            }

        }

        //adds to current field

        function add_to(field,options){

            for(var i = 0;node = options[i];i++){

                    field.appendChild(new Option(node.text, node.value,

                            false, false));

            }

        }

        // add action

        if (this.id=='add_element'){

            var c = get_checked(available);

            add_to(chosen,c[0]);

            fill_with(available,c[1]);

        }

        // remove action

        if (this.id=='remove_element'){

            var c = get_checked(chosen);

            add_to(available,c[0]);

            fill_with(chosen,c[1]);

        }

        // add all elements

        if(this.id=='add_all_elements'){

            for(var i=0; node = available.options[i];i++){

                    chosen.appendChild(new Option(node.text,

                            node.value, false, false));

            }

            available.options.length = 0;

        }

        //remove all elements

        if(this.id=='remove_all_elements'){

            for(var i=0; node = chosen.options[i];i++){

                available.appendChild(new Option(node.text,

                        node.value, false, false));

            }

            chosen.options.length = 0;

        }

    }

    YUE.addListener(['add_element','remove_element',

                   'add_all_elements','remove_all_elements'],'click',

                   prompts_action_callback)

    if (form_id !== undefined) {

        YUE.addListener(form_id,'submit',function(){

            var chosen = YUD.get(selected_container);

            for (var i = 0; i < chosen.options.length; i++) {

                chosen.options[i].selected = 'selected';

            }

        });

    }

}

// custom paginator

var YUI_paginator = function(links_per_page, containers){

    (function () {

        var Paginator = YAHOO.widget.Paginator,

            l         = YAHOO.lang,

            setId     = YAHOO.util.Dom.generateId;

        Paginator.ui.MyFirstPageLink = function (p) {

            this.paginator = p;

            p.subscribe('recordOffsetChange',this.update,this,true);

            p.subscribe('rowsPerPageChange',this.update,this,true);

            p.subscribe('totalRecordsChange',this.update,this,true);

            p.subscribe('destroy',this.destroy,this,true);

            // TODO: make this work

            p.subscribe('firstPageLinkLabelChange',this.update,this,true);

            p.subscribe('firstPageLinkClassChange',this.update,this,true);

        };

        Paginator.ui.MyFirstPageLink.init = function (p) {

            p.setAttributeConfig('firstPageLinkLabel', {

                value : 1,

                validator : l.isString

            });

            p.setAttributeConfig('firstPageLinkClass', {

                value : 'yui-pg-first',

                validator : l.isString

            });

            p.setAttributeConfig('firstPageLinkTitle', {

                value : 'First Page',

                validator : l.isString

            });

        };

        // Instance members and methods

        Paginator.ui.MyFirstPageLink.prototype = {

            current   : null,

            leftmost_page: null,

            rightmost_page: null,

            link      : null,

            span      : null,

            dotdot    : null,

            getPos    : function(cur_page, max_page, items){

                var edge = parseInt(items / 2) + 1;

                if (cur_page <= edge){

                    var radius = Math.max(parseInt(items / 2), items - cur_page);

                }

                else if ((max_page - cur_page) < edge) {

                    var radius = (items - 1) - (max_page - cur_page);

                }

                else{

                    var radius = parseInt(items / 2);

                }

                var left = Math.max(1, (cur_page - (radius)))

                var right = Math.min(max_page, cur_page + (radius))

                return [left, cur_page, right]

            },

            render : function (id_base) {

                var p      = this.paginator,

                    c      = p.get('firstPageLinkClass'),

                    label  = p.get('firstPageLinkLabel'),

                    title  = p.get('firstPageLinkTitle');

                this.link     = document.createElement('a');

                this.span     = document.createElement('span');

                YUD.setStyle(this.span, 'display', 'none');

                var _pos = this.getPos(p.getCurrentPage(), p.getTotalPages(), 5);

                this.leftmost_page = _pos[0];

                this.rightmost_page = _pos[2];

                setId(this.link, id_base + '-first-link');

                this.link.href      = '#';

                this.link.className = c;

                this.link.innerHTML = label;

                this.link.title     = title;

                YAHOO.util.Event.on(this.link,'click',this.onClick,this,true);

                setId(this.span, id_base + '-first-span');

                this.span.className = c;

                this.span.innerHTML = label;

                this.current = p.getCurrentPage() > 1 ? this.link : this.span;

                return this.current;

            },

            update : function (e) {

                var p      = this.paginator;

                var _pos   = this.getPos(p.getCurrentPage(), p.getTotalPages(), 5);

                this.leftmost_page = _pos[0];

                this.rightmost_page = _pos[2];

                if (e && e.prevValue === e.newValue) {

                    return;

                }

                var par = this.current ? this.current.parentNode : null;

                if (this.leftmost_page > 1) {

                    if (par && this.current === this.span) {

                        par.replaceChild(this.link,this.current);

                        this.current = this.link;

                    }

                } else {

                    if (par && this.current === this.link) {

                        par.replaceChild(this.span,this.current);

                        this.current = this.span;

                    }

                }

            },

            destroy : function () {

                YAHOO.util.Event.purgeElement(this.link);

                this.current.parentNode.removeChild(this.current);

                this.link = this.span = null;

            },

            onClick : function (e) {

                YAHOO.util.Event.stopEvent(e);

                this.paginator.setPage(1);

            }

        };

        })();

    (function () {

        var Paginator = YAHOO.widget.Paginator,

            l         = YAHOO.lang,

            setId     = YAHOO.util.Dom.generateId;

        Paginator.ui.MyLastPageLink = function (p) {

            this.paginator = p;

            p.subscribe('recordOffsetChange',this.update,this,true);

            p.subscribe('rowsPerPageChange',this.update,this,true);

            p.subscribe('totalRecordsChange',this.update,this,true);

            p.subscribe('destroy',this.destroy,this,true);

            // TODO: make this work

            p.subscribe('lastPageLinkLabelChange',this.update,this,true);

            p.subscribe('lastPageLinkClassChange', this.update,this,true);