时间轴图文选项滑动切换效果

( function( $ ) {
	var Timeline = {
		init : function(options, elem) {
			var self = this;

			self.$elem = $(elem);
			self.dom = $('body');
			self.wrapClass = '.'+self.$elem.attr('class').split(' ').join('.');
			self.dotsItem = self.wrapClass + " .timeline-dots li";
			self.options = $.extend({}, $.fn.Timeline.options, self.$elem.data(), options);

			self.create_timeline();
		},


		// Load Timeline