var DHTML = (document.getElementById || document.all || document.layers)
/************************************
 * OBTENER DOMINIO DEL SITIO        *
 ************************************/
dominio = document.domain.toLowerCase();
pUrl = document.location.href.toLowerCase();
var site ;

/************************************
 * IDENTIFICAR PLATAFORMA Y BROWSER *
 ************************************/
var navUA = navigator.userAgent.toLowerCase();
var tipoBrowser;
var tipoPlataforma;
if (navUA.indexOf('ipod') != -1)
    tipoBrowser = 'iphone';
else if (navUA.indexOf('iphone') != -1)
    tipoBrowser = 'iphone';
else if (navUA.indexOf('ipad') != -1)
    tipoBrowser = 'ipad';
else if (navUA.indexOf('android') != -1)
    tipoBrowser = 'android';
else if (navUA.indexOf('blackberry') != -1)
    tipoBrowser = 'blackberry';
else if (navUA.indexOf('msie') != -1)
    tipoBrowser = 'explorer';
else if (navUA.indexOf('netscape') != -1)
    tipoBrowser = 'netscape';
else if (navUA.indexOf('firefox') != -1)
    tipoBrowser = 'firefox';
else if (navUA.indexOf('safari') != -1)
    tipoBrowser = 'safari';
else
    tipoBrowser = 'otros';

if (navUA.indexOf('windows') != -1)
	tipoPlataforma = 'windows';
else
	tipoPlataforma = 'mac';


/****************************
 * FUNCIONES PARA COOKIES   *
 ****************************/
function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();}
	else 
		expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}
function getCookieVal (offset) {  
	var endstr = document.cookie.indexOf (";", offset);  
	if (endstr == -1)    
	endstr = document.cookie.length;  
	var clave = unescape(document.cookie.substring(offset, endstr));
	return clave.toLowerCase();
}
function Get_Cookie(name) {  
	var arg = name + "=";  
	var alen = arg.length;  
	var clen = document.cookie.length;  
	var i = 0;  
	while (i < clen) 
	{    
		var j = i + alen;    
		if (document.cookie.substring(i, j) == arg)      
			return getCookieVal (j);    
		i = document.cookie.indexOf(" ", i) + 1;    
		if (i == 0) break;   
	}  
	return null;
}