I use a JavaScript framework called xui (homepage) that has a similar API to jQuery.

You can use this framework coupled with the swipe plugin to get access to easy gesture events. See the swipe/ directory under that repository for the code and example (specifically under index.html). A brief example:

x$('body').swipe(function(e, data) {

    console.log('type:' + data.type + ' deltaX:' + data.deltaX + ' deltaY:' + data.deltaY + ' distance:' + data.distance + ' delay:' + data.delay+' direction:' + data.direction  );

});