How is the frame layout construct

Hello Everyone,

I asked some years ago a company to build my website and as I can now understand the coding of php / mysql,
I just miss how the layout frame is construct. How the background picture is cut into three frames and how the picture segments do not have discontiunities.

Could somebody explain me how this is done ?
What kind of tool is it used to apply such a cut ?
Does somebody have some video tutorials about that procedure ?

I have added two screen shots to show you my query I woul like to get an answer.

Thank you very much in advance.
Best regards.
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Dave BaldwinFixer of ProblemsCommented:
The images are usually split from a full size image using Photoshop or another image editor.  If you look at the source code for the page, you'll see how they're put back together.
festijazzAuthor Commented:

Thank you for your reply.
As I can see, there is no wiziwig or tool to perform such operation automatically.
Strange for so basic task nothing has been foreseen.

Could you please confirm ?
Thank you very much in advance.
Best regards,
Dave BaldwinFixer of ProblemsCommented:
People have been doing that with Photoshop and other graphic editors for many years.  Photoshop used to come with an add-on called ImageReady that did that but I think it is part of Photoshop now.  Other than that, you just cut the image into the pieces and sizes you need in your layout.

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