function user_login_check() {
	if (window.document.user_login.name.value=="") {
		alert("请正确输入您的帐号！");
        document.user_login.name.focus();
        return false;
     }
	 if (window.document.user_login.passwd.value=="") {
		 alert("请输入您的密码以便查对！");
         document.user_login.passwd.focus();
         return false;
     }
	 return true;
}
function search_check() {
	if (window.document.search_info.word.value=="") {
		alert("请正确输入您要查找的的关键字！");
        document.search_info.word.focus();
        return false;
	}
	return true;
}