;(function($){

    $.extend($.fn, {
        freeze: function(opts) {

            var params = $.extend({ 'unfreeze': false }, opts);

            return this.each(function() {
                // This won't work in some versions of Android.
                // http://code.google.com/p/android/issues/detail?id=5491
                // http://code.google.com/p/android/issues/detail?id=4549

                var freeze = function(e){ e.preventDefault(); };

                if (params.unfreeze) {
                    $(this).off('touchmove', freeze);
                } else {
                    $(this).on('touchmove', freeze);
                }
            });
        }
    });

})(Zepto);