Change this
var images = ["1stimage.jpg","2ndimage.jpg","3rdimage.jpg"];
var descriptions=["this is the first set of rotating text", "Now we have another set of text, in this large paragraph. Write whatever we want here", "and this is the last set of text, we have 3 images. We can add more images and more text."]
to this
var images = ["2ndimage.jpg","3rdimage.jpg","1stimage.jpg"];
var descriptions=["Now we have another set of text, in this large paragraph. Write whatever we want here", "and this is the last set of text, we have 3 images. We can add more images and more text.", "this is the first set of rotating text"]