What is the difference between target="top" and target="blank"? To me they work exactly the same but there must be a difference.
There is no difference as you are calling them both as named frames - if you have frames with these names then the link will be opened in it otherwise it will open in a new window. _Top (note the _ before it) means that the link opens in the same window and replaces the whole frameset _Blank (again the _) opens in a new window/ tab