function cstmGetElementsByClassName(obj, class_name) {
  var docList = obj.getElementsByTagName("*");
  var matchArray = new Array();
  var re1 = new RegExp("(^| )"+class_name+"( |$)");
  for (var i = 0; i < docList.length; i++) {
    if (re1.test(docList[i].className)) {
      matchArray[matchArray.length] = docList[i];
    }
  }
  return matchArray;
}
function addGooglePlusOne(id, url) {
  var googleElement = document.createElement("div");
  googleElement.className = "GooglePlusOne";
  googleElement.style.display = "inline";
  googleElement.style.position = "relative";
  googleElement.style.top = "5px";
  googleElement.style.right = "5px";
  var googleu = '<div class="g-plusone"  data-size="small"';
  if(url != "") {
    googleu += ' data-href="'+ url +'"></div>';
  }
  else {
    googleu += '></div>';
  }
  googleElement.innerHTML = googleu;
  if(typeof(document.getElementsByClassName) == "function")
    var elements = document.getElementsByClassName("post-" + id);
  else
    var elements = cstmGetElementsByClassName(document, "post-" + id);
  if(elements.length > 0){
    if(typeof(document.getElementsByClassName) == "function")
      var o = elements[0].getElementsByClassName("entry-title");
    else
      var o = cstmGetElementsByClassName(elements[0], "entry-title");
    if(o.length > 0)
      o[0].appendChild(googleElement);
  }
}