JQuery :: Touch Events - Reverse Data Direction?

I am looking for a snippet to use touch gestures in jquerymobile. The following snippets works fine but the page only slides to the left. How to swipe the page to left and right? (data-direction=reverse"?

<script type="text/javascript">
$('div.ui-page').live("swipeleft", function(){
var nextpage = $(this).next('div[data-role="page"]');
// swipe using id of next page if exists
if (nextpage.length > 0) {
$.mobile.changePage(nextpage, 'slide');
}});
$('div.ui-page').live("swiperight", function(){
var prevpage = $(this).prev('div[data-role="page"]');
// swipe using id of next page if exists
if (prevpage.length > 0) {
$.mobile.changePage(prevpage, 'slide', true);
}});
</script>