var xmlHttp;

function verificaTermo(str)
{
	obj = 'tb_cidade';
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  //alert ("Your browser does not support AJAX!");
  return;
  } 
  if (str=='exterior'){
	document.getElementById(obj).innerHTML='<input type="text" name="cidade" id="cidade" size="40" maxlength="30" class="arial9n">';
  }
  else {
textoEspera = '<select name="cidade" class="arial9n"><option value="" selected>Carregando...&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</option></select>';  
document.getElementById(obj).innerHTML=textoEspera;
var url="pegaCidade.asp";
url=url+"?q="+str;
url=url+"&sid="+Math.random();
/*window.alert(url);*/
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
  }
}
function stateChanged() 
{ 
if (xmlHttp.readyState==4)
{ 
document.getElementById(obj).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;
}