var xmlHttp

function showResults(str, str2, str3, str4, str5, str6)
{
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Your browser does not support the XMLHttpRequest object.")
return
}
var url="/response.asp"
url=url+"?tipologia="+str
url=url+"&categoria="+str2
url=url+"&vani="+str3
url=url+"&provincia="+str4
url=url+"&localita="+str5
url=url+"&prezzo_a="+str6
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}

function stateChanged()
{
  if (xmlHttp.readyState == 0)
  {
document.getElementById("txtResults").innerHTML = "<br /><br /><br /><br /><br /><center> <img src='/assets/loading.gif' /></center>"; //loading
  }
  else if(xmlHttp.readyState == 1)
  {
document.getElementById("txtResults").innerHTML = "<br /><br /><br /><br /><br /><center> <img src='/assets/loading.gif' /> </center>"; //loaded
  }
  else if(xmlHttp.readyState == 2)
  {
document.getElementById("txtResults").innerHTML = "<br /><br /><br /><br /><br /><center> <img src='/assets/loading.gif' /></center>"; //interactive
  }
  else if(xmlHttp.readyState == 3)
  {
document.getElementById("txtResults").innerHTML = "<br /><br /><br /><br /><br /><center> Caricamento Dati...</center>";
  }
  else if (xmlHttp.readyState==4 || xmlHttp.readyState=="completo")
  {
  document.getElementById("txtResults").innerHTML=xmlHttp.responseText
  }
}

function GetXmlHttpObject()
{
  var objXMLHttp=null
  
  try {
    objXMLHttp = new ActiveXObject("Msxml2.XMLHTTP"); //later IE
  } catch (e) {
  try {
    objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP"); //earlier IE
  } catch (e) {
  objXMLHttp = null;
  }
  }
  
  if (objXMLHttp==null)
  {
    objXMLHttp=new XMLHttpRequest() //IE7, Firefox, Safari
  }
  return objXMLHttp
}