var XMLHttpRequestObject = false;
if (window.XMLHttpRequest) {
	XMLHttpRequestObject = new XMLHttpRequest();
}
else 
  	if (window.ActiveXObject) {
  		XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
  	}
function pedirDatos(fuenteDatos, divID){
	if(XMLHttpRequestObject){
		var obj = document.getElementById(divID);
		XMLHttpRequestObject.open("GET", fuenteDatos);
		XMLHttpRequestObject.onreadystatechange = function(){
												if (XMLHttpRequestObject.readyState == 4 && XMLHttpRequestObject.status == 200) {
													obj.innerHTML = XMLHttpRequestObject.responseText;
													}
												}
		XMLHttpRequestObject.send(null);
		}
	}

function enviar(obj, div){
	document.getElementById("form").submit();
	pedirDatos(obj, div);
}