var xmlhttp = getXmlHttpRequest();
	
	function getXmlHttpRequest() {
		if (window.XMLHttpRequest) {
			return new XMLHttpRequest();
		} else if (window.ActiveXObject) {
			return new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	
	
function Cidades(url,id){
  document.getElementById("busca").innerHTML = '<select disabled="disabled"><option>Carregando...</option></select>';
  xmlhttp.open("GET", url + '?id=' + id, true);
  xmlhttp.onreadystatechange = function(){
  
   if (xmlhttp.readyState == 4){
   
   var texto = xmlhttp.responseText;
   texto = texto.replace(/\+/g," ");
   texto = unescape(texto);
	document.getElementById("busca").innerHTML = xmlhttp.responseText;
   }
  } 
  xmlhttp.send(null);
 }