function obj_ajax(){ //funcion que sirve para conectarse
var ajaxs = ["Msxml2.XMLHTTP","Msxml2.XMLHTTP.4.0","Msxml2.XMLH TTP.5.0","Msxml2.XMLHTTP.3.0","Microsoft.XMLHTTP"];
var ajax = false;
for(var i=0 ; !ajax && i<ajaxs.length ; i++){
try{ ajax = new ActiveXObject(ajaxs[i]); }
catch(e) { ajax = false; }
}
if(!ajax && typeof XMLHttpRequest!='undefined') {
ajax = new XMLHttpRequest();
}
return ajax;
}
// JavaScript Document