I'm using this in a multi-page html app (not spa.)
I can't believe navigation is so complicated with JQM, but I noticed when going from
one page to another using your method in the builder pageShow() that ocassionally when I begin to search the page transitioned to it is the DOM of the previous page and not the current page.
JQM pageShow event passes in a UI object in addition to the event object, so you can access the dom of the prevPage and nextPage so that you are sure what DOM you are accessing. This seems to be missing in your version of the the event and you can't be sure what DOM you are accessing.