function sprawdz(form) {
       if ( form[0].value == '' ) {
              alert ( 'Wypełnij pole LOGIN!' );
              form[0].focus();
              return false;
       }
       if ( form[1].value == '' ) {
              alert ( 'Wypełnij pole HASŁO!' );
              form[1].focus();
              return false;
       }
       return true;
}

function login_ok(arg)
{
  if((arg.length<3)||(arg.length>30)){
    return false;
  }
  else{
    var wyrReg=/^[a-z0-9_\-]+[a-z0-9_\-]$/i;
   return wyrReg.test(arg);
  }  
}

function haslo_ok(arg)
{
  if(arg.length<6){
    return false;
  }
  else{
    return true;
  }  
}

function autotab (original, form_id, destination) {
       var element = document.getElementById(form_id)[destination]
       if (original.getAttribute && original.value.length == original.getAttribute ("maxlength")) element.focus();
}

function wyslij_formularz(form_id){
if(sprawdz(document.getElementById(form_id)))
document.getElementById(form_id).submit();
}

function wyslij_rejestracje(form_id){
if(przetwarzaj(document.getElementById(form_id)))
document.getElementById(form_id).submit();
}

function keyInfo(evnt) {
 if (document.all)
  Key = evnt.keyCode;
 else
  Key = evnt.which;
 if(Key == 13)return true;
}