function loadLanguage(changeLang, lang) {
		url = window.location.href;
		var urlArray =url.split("?");
		if(urlArray.length == 1) {
			//如果url后面没有'?'，则直接加上'?lang=语言'
			window.location = url + "?lang=" + changeLang;
		} else {
			if(url.indexOf('lang') != '-1') {
				//如果在url中出现'lang'字符串，则替换其后面的语言
				$langUrl = url.replace('=' + lang, '=' + changeLang);
				window.location = $langUrl;
			} else {
				//如果没有出来'lang'字符串，则在url后面加上'$lang=语言'
				window.location = url + "&lang=" + changeLang;
			}
		}
	}