Xml (kirupa tutorials)

Hi,
I am making a site with 3 photo sections.
When the page loads, I want photos to load automatically as if viewing a slideshow.
I used the xml photo slideshow and this is working.

Then when the user clicks on a category, it will load a photo section that DOES NOT load automatically - you would have to use arrows.
I used the xml photo gallery tutorial for this.

My problem is this:
The photos load automatically when the page loads correctly, but when I click on a button to load a category, the new photos load, but they load as a slideshow too even though I don’t want them to.
Hope this makes sense.
Any suggestions?