I would like to build the two separated horizontal windows, which could be resized. It should all looks like this:
And by using the line where those two arrows are placed at I should be able to resize each windows. Just like it is done at jsfiddle.net
but with the difference that there are 4 windows, and I want 2 horizontals.
Anyone has an idea how to do something like that? I dont really know how to name it properly , so I could find anything with sense at google.