/**
 * Language Detection and Switching Script
 * Copyright 2007 by Stephen Crawford <stephen@inlinehosting.com>
 * All rights reserved.
 **/
/* 	cookie = lang
	values:
	es = spanish
	en = english
*/
function changeLanguage(lang, ignorebrowser) {
	var curPage = window.location.pathname.substring(window.location.pathname.lastIndexOf('/')+1);
	if (ignorebrowser == 1) setCookie('ignorebrowser', 1, 30);
	setCookie('lang', lang, 30);
	if (curPage == '' || !curPage) var curPage = 'index.html';
	if (curLang != lang) {
		if (lang == 'es') window.location.href = 'es.'+curPage;
		else window.location.href = curPage.replace(/es./, '');
	}
}

function checkLanguage() {
	var languagecookie = getCookie('lang');
	var ignorebrowsercookie = getCookie('ignorebrowser');
	
	if (ignorebrowsercookie != 1 && languagecookie == null) { /* set based on browser */
		if (navigator.appName == 'Netscape') var language = navigator.language;
			else var language = navigator.browserLanguage;
		if (language.indexOf('es') > -1) var setlang = 'es';
			else var setlang = 'en';
	} else /* see if theres a cookie */
		if (languagecookie != null) var setlang = languagecookie;
		else var setlang = 'en'; /* we'll just fall back */

	changeLanguage(setlang);
}

// Cookie functions
function setCookie(cookieName, cookieValue, nDays) {
	var today = new Date();
	var expire = new Date();
	if (nDays==null || nDays==0) nDays=1;
	expire.setTime(today.getTime() + 3600000*24*nDays);
	document.cookie = cookieName+"="+escape(cookieValue)+";expires="+expire.toGMTString();
}

function getCookie(name) {
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf("; " + prefix);
	if (begin == -1) {
		begin = dc.indexOf(prefix);
		if (begin != 0) return null;
	} else {
		begin += 2;
	}
	var end = document.cookie.indexOf(";", begin);
	if (end == -1) {
		end = dc.length;
	}
	return unescape(dc.substring(begin + prefix.length, end));
}

function deleteCookie(name, path, domain) {
	if (getCookie(name)) {
		document.cookie = name + "=" +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		"; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
}