var xmlHttp;

function GetXmlHttpObject_Advice(){
	var xmlHttp=null;
	try{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}catch(e){
		// Internet Explorer
		try{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}catch(e){
			try{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}catch(e){}
		}
	}
	return xmlHttp;
}

function sendMap_Advice(w){
	xmlHttp=GetXmlHttpObject_Advice();
	if (xmlHttp==null){
		alert ("Tu navegador no soporta AJAX! No podras usar esta aplicación.");
		return;
	}

	var nn = Math.ceil(Math.random()*100);

	var url=(w=="adviceClose"?"mod_db.php":"advise.php");
	url=url+"?whatType="+w;
	url=url+"&nn="+nn;
	if(w=="adviceClose"){
		var  confirmar = confirm("¿Deseas quitar el campo de avisos?");
		if(confirmar == false){
			return;
		}
	}

	xmlHttp.onreadystatechange=function(){
		if(xmlHttp.readyState==1){
			document.getElementById("adviceInfo").innerHTML="";
			img = document.createElement('img');
			img.src="images/ajaxLoading.gif";
			document.getElementById("adviceInfo").appendChild(img);
			document.getElementById("adviceInfo").appendChild(document.createTextNode(" Cargando por favor espere..."));
		}
		else if (xmlHttp.readyState==4){
			if(w == "adviceNext"){
				document.getElementById("adviceInfo").innerHTML="";
				document.getElementById("adviceInfo").innerHTML=xmlHttp.responseText;
			}
			if(w == "adviceClose"){
				document.getElementById("advice").style.display = "none";
				document.getElementById("addBlank").style.display = "none";
			}
		}
	}

	xmlHttp.open("get",url,true);
	xmlHttp.send(null);
}