function checkform ( form )
{
	
  if (form.email.value == "") {
    alert( "Vložte kontaktní e-mail!" );
    form.email.focus();
    return false ;
  } 
  
  if (form.text.value == "") {
    alert( "Vložte text!" );
    form.text.focus();
    return false ;
  }  
  return true ;
}