sretlow

I have a Samsung S3 with the stock ICS rom. In this rom it is possible to disable all notifications from all apps (like whatsapp, sms, wordfeud and so on) in the upper left corner of the screen. This way I don't have any popups. Unfortunately this option isn't available anymore in the JB rom. There is an option to block but this is only to block incoming calls and sms. Is it possible with tasker to disable all notifications on the taskbar (upper left corner) in JB? If not, may be with a trick like disable the whole notificationbar?