function htmlInclude() {
  var req;
  if (typeof(XMLHttpRequest) == "undefined") {
    // IE
    try {
      req = new ActiveXObject("Msxml2.XMLHTTP");
    } catch(e) {
      try {
        req = new ActiveXObject("Microsoft.XMLHTTP");
      } catch(e) {
        return;
      }
    }
  } else {
    // OTHERS
    req = new XMLHttpRequest();
  }
  
  var tags = document.getElementsByTagName("A");
  var i;
  for (i=0; i<tags.length; i++) {
    if (tags[i].getAttribute("rel") == "fragment") {
      
      req.open('GET', tags[i].getAttribute("href"), false);
      req.send(null);
      
      if (req.status == 200) {
        var container = document.createElement("DIV");
        container.innerHTML = req.responseText;
        
        var a = tags[i];
        var next = container.firstChild;
        var actual;
        while ((actual = next) != null) {
          next = actual.nextSibling;
          a.parentNode.insertBefore(actual, a);
        }
        a.parentNode.removeChild(a);
      }
    }
  }
}
if (window.attachEvent) {
  // IE
  window.attachEvent("onload", htmlInclude);
  
} else {
  // DOM
  window.addEventListener("load", htmlInclude, false);
  
}