function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}

function getQuote(){
	xmlhttp=GetXmlHttpObject();
	var url="/retrieve.php";
		xmlhttp.onreadystatechange=function(){
			if (xmlhttp.readyState==4){
				document.getElementById('content').innerHTML = xmlhttp.responseText;
			}
		}
		xmlhttp.open("GET",url,true);
		xmlhttp.send(null);
}