My UV/Image Editor shows the rendered image

I am using Blender 2.77, i am a beginner and my “plane” object appears in UV/Image Editor rendered. How can I change that back? tried and clicked everywhere but it want appear like I want it.

Has anyone an idea?
Thanks in advance

Delete the Render Result with the X button

oh man, that was it? God bless you. Thanks a lot

Hallo Richard, Thank you so much for your quick answer. Most the times things are just a klick away.