function chkinput_login(){
	if(document.login.u_name.value==""){	
		jaxa_load_msg("请输入帐号！");
		jaxa_msg();
		document.login.u_name.focus();
		return false;
	}
	if(document.login.u_pass.value==""){
		jaxa_load_msg("请输入密码！");
		jaxa_msg();
		document.login.u_pass.focus();
		return false;
	}
	$("#form_in").attr("disabled",true);
	jaxa_load_msg("暂不开放！");
	jaxa_msg();
	return false;
}