Looking for a Page Swap Script

Hi all -

I was wondering if anyone has come across a page swap script. Something simple that will popup a dialogue box and you can enter 2 pages to switch locations (without changing the location of any other pages). I don't really know much about scripting at all, so I wasn't sure if it was even possible but I did I find the below from a few years ago (from indiscripts):

function swapPages(p0, p1)

{

if (p0 == p1) return true;

var pages = app.activeDocument.pages;

var pg0 = pages.itemByName(''+p0); // force string argument

var pg1 = pages.itemByName(''+p1); // force string argument

if ( pg0.documentOffset > pg1.documentOffset ) return swapPages(p1,p0);

try {

  pg1.move(LocationOptions.AFTER,pg0);

  pg0.move(LocationOptions.AFTER,pages.itemByName(''+p1));

  return true;

  }

catch(ex) {return false;}

}

// usage:

swapPages(28,34);

This works great but the issue is it will only swap the 2 pages listed at the end (28 and 34). Was wondering how difficult would it be to adjust this to create a dialogue box when you run it, and choose the pages you want to swap.

Thanks in advance!