hs.openNewWindow = function (el) {
   var exp = hs.expanders[hs.getWrapperKey(el)];
   link = "about:blank";
   var pw = window.open(link, "_new");
   pw.document.open();
   pw.document.write(exp.getNewWindowImage());
   pw.document.close();
   return false;
};
hs.Expander.prototype.getNewWindowImage = function() {
   return "<html>\n" +
      "<head>\n" +
      "<title>Raw Image</title>\n" +
      "</head>\n" +
      "<body>\n" +
      "<img src='" + this.content.src + "'/>\n" +
      "</body>\n" +
      "</html>\n";
};
