var xHRObject = false;
if (window.XMLHttpRequest)
{
   xHRObject = new XMLHttpRequest();
}
else if (window.ActiveXObject)
{
   xHRObject = new ActiveXObject("Microsoft.XMLHTTP");
} 

function sendRequest()
{
   var bodyofrequest = getBody(document.getElementById('address').value); 
   xHRObject.open('post', 'http://www.linkbazar.pl/seo-pozycjonowanie/pagerank.html', true);
   xHRObject.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
   xHRObject.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
   xHRObject.onreadystatechange = getData;
   xHRObject.send(bodyofrequest); 
}

function getBody(data)
{
   var argument = "address=";
   argument += encodeURIComponent(data);  
   return argument;
}

function getData()
{
   if (xHRObject.readyState == 4 && xHRObject.status == 200)
   {
      reply = xHRObject.responseText;
      document.getElementById('result').innerHTML = reply;
   }
}