var xmlHttp
var text
var dstwas
var srcwas

window.onload = ajax;

function ajax()
{
str = document.forms[0].q.value;
src = document.forms[0].src.value;
dst = document.forms[0].dst.value;
if (text==str && dstwas==dst && srcwas==src){
  t=setTimeout("ajax()",2000);
  return;
}
if (str.length==0){
  document.getElementById("hint").innerHTML="";
  t=setTimeout("ajax()",2000);
  return;
}
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  t=setTimeout("ajax()",2000);
  return;
  }        
var url="translate.php";
url=url+"?q="+encodeURIComponent(str);
url=url+"&src="+src;
url=url+"&dst="+dst;
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
text=str;
dstwas=dst;
srcwas=src;
t=setTimeout("ajax()",2000);
} 


function stateChanged() 
{ 
if (xmlHttp.readyState==4)
   { 
   document.getElementById("hint").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;
}