<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,usker-scalable=no,minimal-ui">

var opt = {

  centered: true,

  zIndex: 99999,

  overlaySpeed: 1,

  lightboxSpeed: 1,

  preventScroll: true,

  showOverlay: true,

  onClose: function(){

    $('.js_lb_overlay').remove();

    $('section').unbind('touchmove');//$('section') is page's element

  },

  onLoad: function(){

    $('section').on('touchmove', function (e) {

      e.preventDefault();

    });

    $('.js_lb_overlay').on('touchstart', function (e) {// touchstart!!!

      e.preventDefault();

    });

  },

  closeSelector:'.js_close',

  overlayCSS:{background: '#000000', opacity:0.7}

};