What would be better in Opera !

I'm trying to disable Javascript for a particular website.
So I used the menu "Tools", "Quick Preferences", "Edit site preferences" and I disabled javascript for the website.
But javascript is automatically re-enabling itself when opening a new tab.
Maybe it's because I'm using a shortcut checkbox for controlling Javascript in my address bar.
I thought this checkbox would first check if javascript is activated to appeared checked or unchecked.
Actually, it seems to be always checked.

I removed this shortcut and the problem disappeared.

I think I will have to get rid of this wonderful shortcut ...