old_contents: window.ChatraSetup = {
      mode: 'frame',
      injectTo: 'chatra-wrapper' 
  };
      ChatraID = '6MM4twpMmLJfqR4ar';
      (function(d, w, c) {
          var n = d.getElementsByTagName('script')[0],
              s = d.createElement('script');
          w[c] = w[c] || function() {
              (w[c].q = w[c].q || []).push(arguments);
          };
          s.async = true;
          s.src = (d.location.protocol === 'https:' ? 'https:': 'http:')
              + '//call.chatra.io/chatra.js';
          n.parentNode.insertBefore(s, n);
      })(document, window, 'Chatra');
  	
  	   Chatra('setColors', {
      chatBg: 'transparent' // 
  });
  
new_contents:    ChatraID = 'jjb3L9DqAfuXf9nMT';
      (function(d, w, c) {
          var n = d.getElementsByTagName('script')[0],
              s = d.createElement('script');
          w[c] = w[c] || function() {
              (w[c].q = w[c].q || []).push(arguments);
          };
          s.async = true;
          s.src = (d.location.protocol === 'https:' ? 'https:': 'http:')
              + '//call.chatra.io/chatra.js';
          n.parentNode.insertBefore(s, n);
      })(document, window, 'Chatra');
  
  window.ChatraSetup = {
      mode: 'frame',
      injectTo: 'chatra-wrapper' 
  };
  
  
  
  	
  	   Chatra('setColors', {
      chatBg: 'transparent' // фон
  });
  
  
  
  /*
      (function(d, w, c) {
          w.ChatraID = 'jjb3L9DqAfuXf9nMT';
          var s = d.createElement('script');
          w[c] = w[c] || function() {
              (w[c].q = w[c].q || []).push(arguments);
          };
          s.async = true;
          s.src = (d.location.protocol === 'https:' ? 'https:': 'http:')
          + '//call.chatra.io/chatra.js';
          if (d.head) d.head.appendChild(s);
      })(document, window, 'Chatra');
  
subject: Update b.js