function doEval(code) {
  eval(code);
}

function getEval(url) {
  AjaxGet(url,doEval);
}

function AjaxGet(url, callback) { 
  var XMLHttpRequestObject = false; 
  if (window.XMLHttpRequest) {
    XMLHttpRequestObject = new XMLHttpRequest();
  } else if (window.ActiveXObject) {
    XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
  }
  if(XMLHttpRequestObject) {
    XMLHttpRequestObject.open("GET", url); 
    XMLHttpRequestObject.onreadystatechange = function() { 
      if (XMLHttpRequestObject.readyState == 4 && 
        XMLHttpRequestObject.status == 200) { 
          callback(XMLHttpRequestObject.responseText); 
          delete XMLHttpRequestObject;
          XMLHttpRequestObject = null;
      } 
    } 
    XMLHttpRequestObject.send(null); 
  }
}

function AjaxPost(url, data, callback) { 
  var XMLHttpRequestObject = false; 
  if (window.XMLHttpRequest) {
    XMLHttpRequestObject = new XMLHttpRequest();
  } else if (window.ActiveXObject) {
    XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
  }
  if(XMLHttpRequestObject) {
    XMLHttpRequestObject.open("POST", url); 
    XMLHttpRequestObject.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); 
    XMLHttpRequestObject.onreadystatechange = function() { 
      if (XMLHttpRequestObject.readyState == 4 && 
        XMLHttpRequestObject.status == 200) {
          callback(XMLHttpRequestObject.responseText); 
          delete XMLHttpRequestObject;
          XMLHttpRequestObject = null;
      } 
    }
    XMLHttpRequestObject.send(data); 
  }
}