$('#filter_activate').click(function(){

            initFilter();

        });

    $node_filter.click(function(){

            if($node_filter.hasClass('init')){

                $node_filter.val('');

                $node_filter.removeClass('init');

            }

        });

    $node_filter.keyup(function(e){

            clearTimeout(filterTimeout);

            filterTimeout = setTimeout(updateFilter(e),600);

        });

};

var initCodeMirror = function(textarea_id, baseUrl, resetUrl){

    var myCodeMirror = CodeMirror.fromTextArea($('#' + textarea_id)[0], {

            mode: "null",

            lineNumbers: true,

            indentUnit: 4,

            autofocus: true

        });

    CodeMirror.modeURL = baseUrl + "/codemirror/mode/%N/%N.js";

    $('#reset').click(function(e){

            window.location=resetUrl;

        });

    $('#file_enable').click(function(){

            $('#editor_container').show();

            $('#upload_file_container').hide();

            $('#filename_container').show();

            $('#set_mode_header').show();

        });

    $('#upload_file_enable').click(function(){

            $('#editor_container').hide();

            $('#upload_file_container').show();

            $('#filename_container').hide();

            $('#set_mode_header').hide();

        });

    return myCodeMirror

};

var setCodeMirrorMode = function(codeMirrorInstance, mode) {

    CodeMirror.autoLoadMode(codeMirrorInstance, mode);

}

var _getIdentNode = function(n){

    //iterate thrugh nodes until matching interesting node

    if (typeof n == 'undefined'){

        return -1

    }

    if(typeof n.id != "undefined" && n.id.match('L[0-9]+')){

        return n

    }

    else{

        return _getIdentNode(n.parentNode);

    }

};

/* generate links for multi line selects that can be shown by files.html page_highlights.

 * This is a mouseup handler for hlcode from CodeHtmlFormatter and pygmentize */

var getSelectionLink = function(e) {

    //get selection from start/to nodes

    if (typeof window.getSelection != "undefined") {

        var s = window.getSelection();

        var from = _getIdentNode(s.anchorNode);

        var till = _getIdentNode(s.focusNode);

        var f_int = parseInt(from.id.replace('L',''));

        var t_int = parseInt(till.id.replace('L',''));

        var yoffset = 35;

        var ranges = [parseInt(from.id.replace('L','')), parseInt(till.id.replace('L',''))];

        if (ranges[0] > ranges[1]){

            //highlight from bottom

            yoffset = -yoffset;

            ranges = [ranges[1], ranges[0]];

        }

        var $hl_div = $('div#linktt');

        // if we select more than 2 lines

        if (ranges[0] != ranges[1]){

            if ($hl_div.length) {

                $hl_div.html('');

            } else {

                $hl_div = $('<div id="linktt" class="hl-tip-box">');

                $('body').prepend($hl_div);

            }

            var xy = $(till).offset();

            $hl_div.css('top', (xy.top + yoffset) + 'px').css('left', xy.left + 'px');

            $hl_div.show();

        }

        else{

            $hl_div.hide();

        }

    }

};

var deleteNotification = function(url, notification_id, callbacks){

    var success = function(o){

            $("#notification_"+notification_id).remove();

            _run_callbacks(callbacks);

        };

    var failure = function(o){

            alert("deleteNotification failure");

        };

    var postData = {'_method': 'delete'};

    var sUrl = url.replace('__NOTIFICATION_ID__',notification_id);

    ajaxPOST(sUrl, postData, success, failure);

};

var readNotification = function(url, notification_id, callbacks){

    var success = function(o){

            var $obj = $("#notification_"+notification_id);

            $obj.removeClass('unread');

            $obj.find('.read-notification').remove();

            _run_callbacks(callbacks);

        };

    var failure = function(o){

            alert("readNotification failure");

        };

    var postData = {'_method': 'put'};

    var sUrl = url.replace('__NOTIFICATION_ID__',notification_id);

    ajaxPOST(sUrl, postData, success, failure);

};

/**

 * Autocomplete functionality

 */

// Custom search function for the DataSource of users

var autocompleteMatchUsers = function (sQuery, myUsers) {

    // 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++) {

        var 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;

};

// Custom search function for the DataSource of userGroups

var autocompleteMatchGroups = function (sQuery, myGroups) {

    // Case insensitive matching

    var query = sQuery.toLowerCase();

    var i = 0;

    var l = myGroups.length;

    var matches = [];

    // Match against each name of each group

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

        var matched_group = myGroups[i];

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

            matches[matches.length] = matched_group;

        }

    }

    return matches;

};

// Helper highlight function for the formatter

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

    return full.substring(0, matchindex)

        + "<span class='match'>"

        + full.substr(matchindex, snippet.length)

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

};

var gravatar = function(link, size, cssclass) {

    var elem = '<img alt="" class="{2}" style="width: {0}px; height: {0}px" src="{1}"/>'.format(size, link, cssclass);

    if (!link) {

        elem = '<i class="icon-user {1}" style="font-size: {0}px;"></i>'.format(size, cssclass);

    }

    return elem;

}