/** XHConn - Simple XMLHTTP Interface - bfults@gmail.com - 2005-04-08        **
 ** Code licensed under Creative Commons Attribution-ShareAlike License      **
 ** http://creativecommons.org/licenses/by-sa/2.0/                           **/
function XHConn()
{
  var xmlhttp, bComplete = false;
  try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }
  catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); }
  catch (e) { try { xmlhttp = new XMLHttpRequest(); }
  catch (e) { xmlhttp = false; }}}
  if (!xmlhttp) return null;
  this.connect = function(sURL, sMethod, sVars, fnDone)
  {
    if (!xmlhttp) return false;
    bComplete = false;
    sMethod = sMethod.toUpperCase();

    try {
      if (sMethod == "GET")
      {
        xmlhttp.open(sMethod, sURL+"?"+sVars, true);
        sVars = "";
      }
      else
      {
        xmlhttp.open(sMethod, sURL, true);
        xmlhttp.setRequestHeader("Method", "POST "+sURL+" HTTP/1.1");
        xmlhttp.setRequestHeader("Content-Type",
          "application/x-www-form-urlencoded");
      }
      xmlhttp.onreadystatechange = function(){
        if (xmlhttp.readyState == 4 && !bComplete)
        {
          bComplete = true;
          fnDone(xmlhttp);
        }};
      xmlhttp.send(sVars);
    }
    catch(z) { return false; }
    return true;
  };
  return this;
}

// Crecion de funciones pare interacturar con AJAX utizando la interface XHConn
var myConn = new XHConn();
if (!myConn) alert("XMLHTTP no disponible. Intenta un mejor Buscador.");
var include_destino;
var include_contenido = function (oXML) { 
	document.getElementById(include_destino).innerHTML = oXML.responseText; 
}

function include_dinamico (pagina, metodo, variables, destino){

	document.getElementById(destino).innerHTML = "<div style='font-size=12; font-family:Verdana, Arial, Helvetica, sans-serif; font-weight: bold; text-align:center;'>Cargando...</div>";
	include_destino = destino; 
	myConn.connect(pagina, metodo, variables, include_contenido);
}

function include_formulario (pagina, metodo, formulario, destino){
	var formulario = document.getElementById(formulario); 
	var cadenaformulario = "";
	var sepcampos = "";
	for (var i=0; i <= formulario.elements.length-1;i++) { 
		cadenaformulario += sepcampos+formulario.elements[i].name+'='+encodeURI(formulario.elements[i].value); 
		sepcampos="&";
	}
	include_destino = destino; 
	myConn.connect(pagina, metodo, cadenaformulario, include_contenido);
}