var page = (function() {
    function init() {

    }
    function language(lang) {
	if (window.location.search.length == 0) {
		window.location.search = '?lang='+lang; 
	} else if (!window.location.search.match(/lang=[^?=&]*/)) {
	 	window.location.search += '&lang='+lang;
	} else {
		window.location.search = window.location.search.replace(/(lang=)([^?=&]*)/, '$1'+lang);
	}
    }
    return {
        init:init,
	    language:language
    };
})()