The source code

    // Unique task ids, if the time isn't unique enough, the addition
    // of random chars should be
    Ext.uniqueId = function(){
    	var t = String(new Date().getTime()).substr(4);
    	var s = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
    	for(var i = 0; i < 4; i++){
    		t += s.charAt(Math.floor(Math.random()*26));
    	}
    	return t;
    }

    // Define the Task data type
    tx.data.Task = Ext.data.Record.create([
        {name: 'taskId', type:'string'},
        {name: 'listId', type:'string'},
        {name: 'title', type:'string'},
        {name: 'description', type:'string'},
        {name: 'dueDate', type:'date', dateFormat: Ext.sql.Proxy.DATE_FORMAT, defaultValue: ''},
        {name: 'completed', type:'boolean'},
        {name: 'completedDate', type:'date', dateFormat: Ext.sql.Proxy.DATE_FORMAT, defaultValue: ''},
        {name: 'reminder', type:'date', dateFormat: Ext.sql.Proxy.DATE_FORMAT, defaultValue: ''}
    ]);

    // Define the List data type
    tx.data.List = Ext.data.Record.create([
        {name: 'listId', type:'string'},
        {name: 'parentId', type:'string'},
        {name: 'listName', type:'string'},
        {name: 'isFolder', type:'boolean'}
    ]);

    tx.data.conn = Ext.sql.Connection.getInstance();

    tx.data.tasks = new tx.data.TaskStore();
    tx.data.lists = new tx.data.ListStore();

    tx.data.getDefaultReminder = function(task){
    	var s = task.data.dueDate ? task.data.dueDate.clearTime(true) : new Date().clearTime();
    	s = s.add('mi', Ext.state.Manager.get('defaultReminder'));
    	return s;
    };

    tx.data.getActiveListId = function(){
        var id = tx.data.tasks.activeList;
        if(!id){
            var first = tx.data.lists.getAt(0);
            if(first){
                id = first.id;
            }else{
                id = tx.data.lists.newList().id;
            }
        }
        return id;
    };