var xmlhttp = createXMLHttpRequest();
function createXMLHttpRequest() {

		//Interface gen�rica para acesso ao conector remoto.

   try{ return new ActiveXObject("Msxml2.XMLHTTP"); }catch(e){}
   try{ return new ActiveXObject("Microsoft.XMLHTTP"); }catch(e){}
   try{ return new XMLHttpRequest(); }catch(e){}
   alert("XMLHttpRequest not supported");
   return null;
}


function ajax(url,id) {
	document.getElementById(id).innerHTML = "<center>Carregando</center>";
	//xmlhttp.open("POST", url, true);

	xmlhttp.open("GET",url,true);
	this.xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
	this.xmlhttp.setRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate");
	this.xmlhttp.setRequestHeader("Cache-Control", "post-check=0, pre-check=0");
	this.xmlhttp.setRequestHeader("Pragma", "no-cache");
	xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState == 4) {
			if (xmlhttp.status == 200) {
				document.getElementById(id).innerHTML = xmlhttp.responseText;
			}else {
				document.getElementById(id).innerHTML = "status is " + request.status;
			}
		}
	}
	xmlhttp.send(null);
}

function ajax_egito(url,id) {
	document.getElementById(id).innerHTML = "<center>Carregando</center>";
	//xmlhttp.open("POST", url, true);

	xmlhttp.open("GET",url,true);
	this.xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
	this.xmlhttp.setRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate");
	this.xmlhttp.setRequestHeader("Cache-Control", "post-check=0, pre-check=0");
	this.xmlhttp.setRequestHeader("Pragma", "no-cache");
	xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState == 4) {
			if (xmlhttp.status == 200) {
				document.getElementById(id).innerHTML = xmlhttp.responseText;
				document.getElementById('questionario_egito').style.display =  'none';
			}else {
				document.getElementById(id).innerHTML = "status is " + request.status;
			}
		}
	}
	xmlhttp.send(null);
}

function comboCidades(estadoId,nomeDIV,nomeCampo){
	var url = 'combo_cidade.php';
	var area = $(nomeDIV);
	area.update('<img src="../img/img_ico_loading.gif"');
	var params = '&estadoId='+estadoId+'&nomeCampo='+nomeCampo;
	new Ajax.Updater(area,url,{
			method: 'post',
			parameters: params,
			onFailure: function (){alert('Falha ao carregar')}
		}
	);
}