/********************************************************************************************/
/* AJAX Simple Tabs by developersnippets, This code is intended for practice purposes.      */
/* You may use these functions as you wish, for commercial or non-commercial applications,  */
/* but please note that the author offers no guarantees to their usefulness, suitability or */
/* correctness, and accepts no liability for any losses caused by their use.                */
/********************************************************************************************/

var req;
function callPage(pageUrl, divElementId, loadinglMessage, pageErrorMessage) {
     document.getElementById(divElementId).innerHTML = loadinglMessage;
     try {
     req = new XMLHttpRequest(); /* e.g. Firefox */
     } catch(e) {
       try {
       req = new ActiveXObject("Msxml2.XMLHTTP");  /* some versions IE */
       } catch (e) {
         try {
         req = new ActiveXObject("Microsoft.XMLHTTP");  /* some versions IE */
         } catch (E) {
          req = false;
         } 
       } 
     }
     req.onreadystatechange = function() {responsefromServer(divElementId, pageErrorMessage);};
     req.open("GET",pageUrl,true);
     req.send(null);
  }

function responsefromServer(divElementId, pageErrorMessage) {
   var output = '';
   if(req.readyState == 4) {
      if(req.status == 200) {
         output = req.responseText;
         document.getElementById(divElementId).innerHTML = output;
         } else {
         document.getElementById(divElementId).innerHTML = pageErrorMessage+"\n"+output;
         }
      }
  }
  
/* This Function is for Tab Panels */
function activeTab(tab)
	{   
		document.getElementById("tab1").className = "";
		document.getElementById("tab2").className = "";
		//document.getElementById("tab3").className = "";
		document.getElementById("tab"+tab).className = "active";
		if(tab == 1) // If your tabs are more, then you can use 'switch' condition instead of 'if' condition for better practice
		{callPage('contentpage1.html', 'content', '<img src=\"images/loading.gif\" /> Content is loading, Please Wait...', 'Error cargando la página <img src=\"images/error.png\" />');
		}else if(tab == 2){
		callPage('contentpage2.html', 'content', '<img src=\"images/loading.gif\" /> Content is loading, Please Wait...', 'Error cargando la página <img src=\"images/error.png\" />');
		}else
		callPage('contentpage3.html', 'content', '<img src=\"images/loading.gif\" /> Content is loading, Please Wait...', 'Error cargando la página <img src=\"images/error.png\" />');
	}
	/* esta función es para cargar en contenedor */
	
function NuevoAjax(){
var xmlhttp=false;
try{
	xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
}catch(e){
	try{
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
 	}catch(E){
		xmlhttp = false;
	}
}

if(!xmlhttp && typeof XMLHttpRequest!='undefined'){
	xmlhttp = new XMLHttpRequest();
}
return xmlhttp;
}
function Cargar(url){
var contenido;
contenido = document.getElementById('contenedor');
ajax=NuevoAjax();
ajax.open("GET", url,true);
ajax.onreadystatechange=function(){
	 if(ajax.readyState==4){
		contenido.innerHTML = ajax.responseText;
			}
}
ajax.send(null);
}