function validateTextField(form)
{
	args = validateTextField.arguments;
	error = false;

  for (i=1; i<(args.length); i++)
  {
    fieldname = args[i];

  	if (form.elements[fieldname])
  	{
  	  if (form.elements[fieldname].value == "")
    	{
    		form.elements[fieldname].className = "inputfielderror";
    		if (!error)
    		  form.elements[fieldname].focus();
    		error = true;
    	}
    	else
    	{
    		form.elements[fieldname].className = "inputfield";
    	}
    }
  }

	return !error;
}