/* Scripts taken from www.quirksmode.org */

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 var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

/* Language script */
function checkLanguage(toggleHref) {
	// Check from cookie
	var x = readCookie('ppkcookie');
	if (x) {
		// We have forced a language -- apply it
		if ((x == 'fr') && (document.location.pathname.indexOf('/fr/') == -1)) {
			document.location = toggleHref;
		} else if ((x == 'en') && (document.location.pathname.indexOf('/fr/') > -1)) {
			document.location = toggleHref;
		}
	} else {
		// Else auto-set language
		if (navigator.browserLanguage)
			var language = navigator.browserLanguage;
		else
			var language = navigator.language;
			
		if ((language.indexOf('fr') > -1) && (document.location.pathname.indexOf('/fr/') == -1)) {
			document.location = toggleHref;
		} else if ((language.indexOf('en') > -1) && (document.location.pathname.indexOf('/fr/') > -1)) {
			document.location = toggleHref;
		}
	}
}

function setLanguage(lang, toggleHref) {
	// Save cookie
	createCookie('ppkcookie',lang,7);
	
	// We have forced a language -- apply it
	if ((lang == 'fr') && (document.location.pathname.indexOf('/fr/') == -1)) {
		document.location = toggleHref;
	} else if ((lang == 'en') && (document.location.pathname.indexOf('/fr/') > -1)) {
		document.location = toggleHref;
	}
}