如何在加载页面时加载div数据？

Question

我想在加载商家网站之前显示div数据。

JavaScript代码：

       function two()
      {
         var newWin = window.open('URL');
//I want to load "<div class="loader"> content before the above URL loads in new window
      }

这是我的HTML代码：

      <div class="loader">I have some content and images which i wanted to dispaly in loading page</div>

   <input class="btn add-to-cart-btn" onclick="two();" type="button" value="More Info At {{ product.vendor }}"/>

如何加载div内容？如果有人有任何建议，请告诉我。