Mega drop down menu link opens in iframe

Q: Ive built a menu with css3 menu but it doesn't work as I expected it to, it keeps opening into its own frame rather than launching the whole new master page (without opening a new pop up window).

I didn't know which kind of command to use ie: parent/self etc

Its probably something very simple but Im missing something.

A: Notice, that if you use iframe you should set the target parameter as "top" or "blank", but not "self".