ajax vs reload page

Also, i have another issu, when i select in the Pagination Button Layout, “Previous & Next”

It generatesa lot of
code, see image:
https://www.dropbox.com/s/oml7upfpfnwu9u3/Screenshot%202015-05-19%2017.31.42.png?dl=0

But without that option, with the option “Title & Number” works fine.

tx a lot