js侧边隐藏响应式下拉导航菜单栏

function hamburger_cross() {

		      if (isClosed == true) {          
		        overlay.hide();
		        trigger.removeClass('is-open');
		        trigger.addClass('is-closed');
		        isClosed = false;
		      } else {   
		        overlay.show();
		        trigger.removeClass('is-closed');
		        trigger.addClass('is-open');
		        isClosed = true;
		      }
		  }
		  
		  $('[data-toggle="offcanvas"]').click(function () {
		        $('#wrapper').toggleClass('toggled');
		  });  
		});