var xmlHttp

function showHint(str)
{
if (str.length==0)
  { 
  document.getElementById("meio").innerHTML="";
  return;
  }
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
  {
  alert ("Seu navegador não suporta AJAX!");
  return;
  } 
var url=""+str;
url=url+"?q="+str;
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
} 

function stateChanged() 
{ 
if (xmlHttp.readyState==0)
{ 
	document.getElementById("meio").innerHTML="<div align=center><br /><br /><br /><br /><br /><font color=004D9B face=Tahoma><b>não inicializado</b></font></div>";
}
else if (xmlHttp.readyState==1)
{ 
	document.getElementById("meio").innerHTML="<div align=center><br /><br /><br /><br /><br /><font color=004D9B face=Tahoma><img src=image/load2.gif width=16 height=16 align=absmiddle/>Carregando...<BR><BR><BR></font></div>";
}
else if (xmlHttp.readyState==2)
{ 
	document.getElementById("meio").innerHTML="<div align=center><br /><br /><br /><br /><br /><font color=004D9B face=Tahoma>Enviando...</font></div>";
}
else if (xmlHttp.readyState==3)
{ 
document.getElementById("meio").innerHTML="<div align=center><br /><br /><br /><br /><br /><font color=004D9B face=Tahoma><img src=image/load2.gif align=absmiddle/>Carregando...<BR><BR><BR></font></div>";
}
else if (xmlHttp.readyState==4)
{ 
document.getElementById("meio").innerHTML="<div align=center><br /><br /><br /><br /><br /><font color=004D9B face=Tahoma><b>Carga completa!</b></font></div>";
document.getElementById("meio").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;
}