// JavaScript:
// Dong Chen

/////////////////////
function checkLogin()
{
	if (document.login.username.value == "")
	{
		alert("Please enter username!");
		document.login.username.focus();
		return false;
	}

   if (document.login.password.value == "")
   {
      alert("Please enter password!");
      document.login.password.focus();
      return false;
   }

	return true
}

////////////////////////
function checkRegister()
{
   if (document.register.username.value == "")
   {
      alert("Please enter username!");
      document.register.username.focus();
      return false;
   }

   if (document.register.password.value == "")
   {
      alert("Please enter password!");
      document.register.password.focus();
      return false;
   }

   if (document.register.password2.value == "")
   {
      alert("Please enter password!");
      document.register.password2.focus();
      return false;
   }

	if (document.register.password.value != document.register.password2.value)
	{
		alert("Please repeat the same password twice!");
		document.register.password2.focus();
		return false;
	}

   if (document.register.fullname.value == "")
   {
      alert("Please enter full name!");
      document.register.fullname.focus();
      return false;
   }

   if (document.register.email.value == "")
   {
      alert("Please enter email address!");
      document.register.email.focus();
      return false;
   }

   return true
}