function nuevoAjax(){
	var xmlhttp=false;
	try{
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	}catch(e){
		try {
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		}catch(E){
			xmlhttp = false;
		}
	}	
	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
		xmlhttp = new XMLHttpRequest();
	}
	return xmlhttp;
}
function enviarClima(){

	contenedor = document.getElementById('Clima');
	zona = document.getElementById('clima-buscar').value;
	ajax=nuevoAjax();
	contenedor.innerHTML = '<p style="text-align:center;"><img src="../../../clima/invita_amigo/proceso2.gif"/></p>'; 
	ajax.open("POST", "clima/buscar_clima.php",true);
	ajax.onreadystatechange=function() {
		if (ajax.readyState==4) {
			contenedor.innerHTML = ajax.responseText
       		}
	}
	ajax.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	ajax.send("zona="+zona)
}