rem:  (this._removeButton = document.getElementById("removeEditor")).disabled = true; 
add:  (this._removeButton = document.getElementById("removeEditor")).disabled = true; 
context:     init: function()    {        var args = window.arguments[0];        this._FBL = args.FBL;        this._prefName = args.prefName;                (this._removeButton = document.getElementById("removeEditor")).disabled = true;            (this._changeButton = document.getElementById("changeEditor")).disabled = true;                this._tree = document.getElementById("editorsList");                this._treeView =        {            data: this._data,            selection: null,                        get rowCount() { return this.data.length; },            getCellText: function(row, column)            {                switch(column.id)                {                case "editorName":                    return " "+this.data[row].label;                case "editorExecutable":                    return this.data[row].executable;                case "editorParams":                    return this.data[row].cmdline;                }                return "";            },            setTree: function(treebox){ this.treebox = treebox; },            isContainer: function(row) { return false; },            isContainerOpen: function(row) { return false; },            isContainerEmpty: function(row) { return false; },            isSeparator: function(row) { return false; },            isSorted: function() { return false; },            getLevel: function(row) { return 0; },            getImageSrc: function(row,column) { return column.id=="editorName" ? this.data[row].image : null; },            getRowProperties: function(row,props) {},            getCellProperties: function(row,column,props) {},            getColumnProperties: function(colid,column,props) {}        };                this._load();        this._tree.view = this._treeView;    },
meta: 7450	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7450/e1d42ad3fad63b72826a4e2ed0726866484c9ac3/editors.js/buggy/extension/content/firebug/editors.js