var xmlHttp
function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}

var url = "include/get_price.php?delivery_date="; 
function getagentids() 
{ 
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	  {
	  alert ("Your browser does not support AJAX!");
	  return;
	  }
	var delivery_date = document.getElementById("id_delivery_date").value; 

	var delivery_time = document.getElementById("id_delivery_time").value;

	var collection_date = document.getElementById("id_collection_date").value; 

	var collection_time = document.getElementById("id_collection_time").value;

	
    document.book_clubs.calculate_total_price.value = "Please wait...";
		  

	if(collection_time > delivery_time)
	{
		alert('One day rental is 24h. In this case we have to charge you one extra day.');
	}

	//alert("lala:"+url + delivery_date + "&delivery_time=" + delivery_time + "&collection_date=" + collection_date + "&collection_time=" + collection_time + add_get_row);

	xmlHttp.open("GET", url + delivery_date + "&delivery_time=" + delivery_time + "&collection_date=" + collection_date + "&collection_time=" + collection_time + add_get_row, true); 
	xmlHttp.onreadystatechange = handleHttpResponse; 
	xmlHttp.send(null);
}

function handleHttpResponse() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		xmlDoc=xmlHttp.responseXML;
		document.book_clubs.total_price.value = xmlDoc.getElementsByTagName("price")[0].childNodes[0].nodeValue;
		//alert("nr_days = "+xmlDoc.getElementsByTagName("days")[0].childNodes[0].nodeValue);
		//alert(xmlDoc.getElementsByTagName("pax")[0].childNodes[0].nodeValue);
		//document.getElementById("price").innerHTML=
		//xmlDoc.getElementsByTagName("price")[0].childNodes[0].nodeValue;
	} 
	document.book_clubs.calculate_total_price.value = "« Calculate Total Price";
}