var isIE = false;

var req;

function cargaXML(url) {
	if(url==''){
		return;
	}

	if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
		req.onreadystatechange = processReqChange;
		req.open("GET", url, true);
		req.send(null);
	} else if (window.ActiveXObject) {
		isIE = true;
		req = new ActiveXObject("Microsoft.XMLHTTP");
		if (req) {
			req.onreadystatechange = processReqChange;
			req.open("GET", url, true);
			req.send();
		}
	}
}

function processReqChange(){
	var contacto = document.getElementById("descripcion");
	if(req.readyState == 4){
		contacto.innerHTML = req.responseText;
	} else {
		contacto.innerHTML = 'Loading...';
	}
}