function load(targetId,url,strMethods,params) {
	tmp_targetId = targetId;
	document.getElementById(targetId).innerHTML = "<img src='img/loading.gif' />Loading";
	if (window.XMLHttpRequest){
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType)
			http_request.overrideMimeType("text/xml");
	}
	else if (window.ActiveXObject){
		try{
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e){
			try{
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e){}
		}
	}
	if (!http_request){
		alert("ERROR :( No es posible crear una instancia XMLHTTP");
		return false;
	}
	http_request.onreadystatechange = GetAnswerLoadForm;
	if(strMethods == "GET"){
		http_request.open("GET", url + "?" + params, true);
		http_request.send(null);
	}
	else if(strMethods == "POST"){
		http_request.open("POST", url, true);
		http_request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		http_request.send(params);
	}
}
function GetAnswerLoadForm(){
	if (http_request.readyState == 4){
		if (http_request.status == 200){
			identifier = document.getElementById(tmp_targetId);
			document.getElementById('content').innerHTML = http_request.responseText;
	    }
		else{
			alert("Hubo problemas con la petición.");
		}
	}
}