Javascript + xml technology implement page browsing _ javascript skills

In web-based technology, paging is an old one that cannot be used any longer. But with the increasing application of xml technology, xml is applied to paging, it is also a possibility. Of course, there are a lot of online tutorials. When I am confused, I just want to write it myself, share it with you, and correct it. There are two files: tmh.htm & tt. xml.
The source code is as follows:
Tmh.htm

The Code is as follows:

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