[statusItem setImage:[NSImage imageNamed:@"menu"]];
[[statusItem _button] setAlternateImage:[NSImage imageNamed:@"selected_image"]];
[statusItem setHighlightMode:YES];
[statusItem setImage:[NSImage imageNamed:@"menu"]];
[[statusItem _button] setAlternateImage:[NSImage imageNamed:@"selected_image"]];
[statusItem setHighlightMode:YES];