function topSearch(thisForm) {
	var q=thisForm.q.value;
	var qtype=thisForm.qtype.value;
	if (q=="key1 key2 key3" || q=="" || q.replace(/^\s+|\s+$/,"")=="") {
		alert("请输入关键字!");
		thisForm.q.value="";
		thisForm.q.focus();
		return false;
	}
	if (qtype=="") {
		alert("请选择搜索类型!");
		thisForm.qtype.focus();
		return false;
	}else{
		switch(qtype){
			case "新闻":
				thisForm.action = "/lang/zh-cn/news/search.asp";
				break;
			case "新房":
				thisForm.action = "/lang/zh-cn/newhouse/search.asp";
				break;
			case "二手房":
				thisForm.action = "/lang/zh-cn/secondhand/search.asp";
				break;
			default:
				thisForm.action = "/lang/zh-cn/news/search.asp";
		}
	}
	return true;
}