function validate_name(field,alerttxt)
{
with (field)
  {
  if (field.value.length == 0)
    {alert(alerttxt);return false;}
  else {return true;}
  }
}

function validate_email(field,alerttxt)
{
with (field)
  {
  apos=value.indexOf("@");
  dotpos=value.lastIndexOf(".");
  if (apos<1||dotpos-apos<2)
    {alert(alerttxt);return false;}
  else {return true;}
  }
}

function validate_form(thisform)
{
with (thisform)
  {
	if (validate_name(name,"Please enter your name to register.")==false)
	{name.focus();return false;}
	if (validate_email(email,"Please enter a valid e-mail address to register.")==false)
    {email.focus();return false;}
  }
}