Remove area?

Hi,

i accidentally hit “split area” when i was trying to remove a header. Is there a way to remove the area i split

Right mouse click on the divider and select Join Area and select which way to join
See here http://wiki.blender.org/index.php/Doc:Manual/Interface/Window_system/Arranging_frames

Ok thank you so much, got it!

You can only join same dimension windows