var http = createRequestObject();

function createRequestObject() {
   var objAjax;
   var browser = navigator.appName;
   if(browser == "Microsoft Internet Explorer") {
      objAjax = new ActiveXObject("Microsoft.XMLHTTP");
   } else {
      objAjax = new XMLHttpRequest();
   }
   return objAjax;
}


function getnew( c ) {
   http.open('get', c );
   http.onreadystatechange = updateContent;
   http.send(null);
   return false;
}

function gettitle( c ) {
   http.open('get', c );
   http.onreadystatechange = updateTitle;
   http.send(null);
   return false;
}

function updateTitle() {
   if(http.readyState == 4) {
      document.title = http.responseText;
   }
}

function updateContent(){
   if(http.readyState == 4){
      document.getElementById('header').innerHTML = http.responseText;
   }
}