//******************************************************
//Funciones que guardan, borran y recuperan cookies
//******************************************************
function getCookie(name){ 
	
	var cname = name + "="; 
	var dc = document.cookie; 

	if (dc.length > 0) { 
		begin = dc.indexOf(cname); 
		if (begin != -1) { 
			begin += cname.length; 
			end = dc.indexOf(";", begin); 
			if (end == -1) end = dc.length; 
			return unescape(dc.substring(begin, end)); 
		} 
	} 
	return null; 
} 

function setCookie (name, value, expires) {
	//Si no trae la fecha de caducidad lo caducamos en un ano
	if (!expires){
		expires = new Date();
		expires.setDate(expires.getDate() + 365);
	}
	var strCookie = name + "=" + escape (value) + ";path=/; expires=" + expires.toGMTString();
	document.cookie = strCookie;
}

function delCookie (name) {
	var expireNow = new Date();
	document.cookie = name + "=" + "; expires=Thu, 01-Jan-70 00:00:01 GMT" +  "; path=/";
}