// Title: ajax js fuer preisvergleich und genre puplldown update

var xmlHttp
var xmlHttpPrice
var is_ie

// preisverlgeich
function loadPrices(str) {
	xmlHttpPrice=GetXmlHttpObject()
	if (xmlHttpPrice==null) {
	 // alert ("Browser does not support HTTP Request")
	 return
	}
	document.getElementById("preisvergleich").innerHTML="<span class=\"smallBoldColoredFont\">loading...</span>";
	var url="preisvergleich.php"
	// uebergabeparameter: topic, time, genre und ie-erkennung (s.u.) 
	url=url+"?"+str
	//alert(url);
	xmlHttpPrice.onreadystatechange=stateChangedPrice 
	xmlHttpPrice.open("GET",url,true)
	xmlHttpPrice.send(null) 
}
function stateChangedPrice() { 
  if (xmlHttpPrice.readyState==4 || xmlHttpPrice.readyState=="complete") { 
    document.getElementById("preisvergleich").innerHTML=xmlHttpPrice.responseText;   
  } 
}
// kinoprogramm
function loadCinemaTowns(str) {
	xmlHttpCinema=GetXmlHttpObject()
	if (xmlHttpCinema==null) {
	 // alert ("Browser does not support HTTP Request")
	 return
	}
	document.getElementById("kinoprogramm").innerHTML="<span class=\"smallBoldColoredFont\">loading...</span>";
	var url="kinoprogramm.php"
	// uebergabeparameter: filmtitel 
	url=url+"?"+str
	//alert(url);
	xmlHttpCinema.onreadystatechange=stateChangedCinema 
	xmlHttpCinema.open("GET",url,true)
	xmlHttpCinema.send(null) 
}
function stateChangedCinema() { 
  if (xmlHttpCinema.readyState==4 || xmlHttpCinema.readyState=="complete") { 
    document.getElementById("kinoprogramm").innerHTML=xmlHttpCinema.responseText;   
  } 
}

// allgemeine funtion fuer HTTPRequest
function GetXmlHttpObject() {
  var xmlHttp=null;
  try {
		 // Firefox, Opera 8.0+, Safari
		 xmlHttp=new XMLHttpRequest();
		 is_ie = false;
		 // der ie7 kann zwar auch XMLHttpRequest, aber auch hier muss das gesamte select-menu ersetzt werden
		 if (!window.innerWidth) {
		   is_ie = true;
		 }  
  } catch (e) {
		 //Internet Explorer
		 try {
		   xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		   is_ie = true;
	   } catch (e) {
	     xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	     is_ie = true;
	   }
  }
  return xmlHttp;
}