// JavaScript Document

function checkform()
{ 
	if(document.logon.name.value == "")
	{ 
		alert("用户名不能为空!");
		return false;
	}
	
	if(document.logon.password.value == "")
	{
		alert("密码不能为空!");
		return false;
	}
	username=document.logon.name.value;	
	
	if(username.indexOf('@') <= 0 )
		username += "@hnredstar.gov.cn";
	document.logon.username.value = username;
	return true;
}