var xmlHttp

function send_Otziv(o_author,o_mail,o_text,s_id)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="send_otziv.php";


params = 'au=' +escape(o_author) + '&ma=' +escape(o_mail) + "&te=" +escape(o_text) + "&si="+escape(s_id);


xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("POST",url,true);
    if (xmlHttp.setRequestHeader)
        xmlHttp.setRequestHeader("Content-Type",
        	"application/x-www-form-urlencoded");

xmlHttp.send(params);
}

function stateChanged()
{ 
  document.getElementById("txtHint").innerHTML='<div align="left"><img src="/img/loader.gif"/></div>';

if (xmlHttp.readyState==4)
{ 
document.getElementById("txtHint").innerHTML=xmlHttp.responseText;


}
}

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;
}