text: function funAlert() {
      var btn = document.querySelector('#share_box');
      var share_btn = document.querySelector('#share');
  	
      if (btn.style.display == 'none') {
          btn.style.display = 'flex';
          share_btn.src = "images/sharing_hover.png";
      } else {
          btn.style.display = 'none';
          share_btn.src = "images/sharing.png";
      }
  }
  