function setlang(lang) {
	var reg = new RegExp('/(fr|en)/');
	var url = document.location.href.replace(reg, "/" + lang + "/");
	document.location.href = url;
	set_cookie('lang', lang);
    }

    function set_cookie(name, value, expire) {
        var timestamp = new Date(expire);
        document.cookie = name + '=' + escape(value) + '; expire=' + timestamp.toGMTString()
    }
    
    function get_cookie(name) {
        var start = document.cookie.indexOf(name + "=");
        var len = start + name.length + 1;
        if ((!start) && (name != document.cookie.substring( 0, name.length))) {
    	return null;
        }
        if (start == -1) return null;
        var end = document.cookie.indexOf(";", len);
        if (end == -1) end = document.cookie.length;
        return unescape( document.cookie.substring(len, end));
    }