function checkForm(theForm)
  {
    if(theForm.first_name.value == "")
    {
      alert("Please enter your first name.");
      theForm.first_name.focus();
      return false;
    }
	if(theForm.last_name.value == "")
    {
      alert("Please enter your last name.");
      theForm.last_name.focus();
      return false;
    }
    else if(theForm.email1.value == "")
    {
      alert("Please enter your e-mail address.");
      theForm.email1.focus();
      return false;
    }
    else if(theForm.email1.value.indexOf("@") == -1)
    {
      alert("Please enter a valid e-mail address.");
      theForm.email1.focus();
      return false;
    }
	if(theForm.phone_work.value == "")
    {
      alert("Please enter your phone number.");
      theForm.phone_work.focus();
      return false;
    }
    return true;
  }