private void AddNewTab()
{
Tab newTab = new Tab();
tab.Add(newTab);
// Hook up tab band event handlers
newTab.Title.MouseLeftButtonUp += this.TabClick;
newTab.Title.ContextMenu = (ContextMenu)Resources["TabTitleContextMenu"];
newTab.CloseButton.MouseLeftButtonUp += this.TabClose;
TabBar.Children.Add(newTab.Title);
Editor.Children.Add(newTab.TextEditor);
}