function sendForm () {
    document.getElementById('reclama').style.display='none';
    document.getElementById('reclamaJos').style.display='block';
       $("#cuvant_tradus").html("Asteptati putin va rog...");
       $.post("logic.php", {
             sursa: document.getElementById('sursa').value
       }, function(xml) {
       // format and output result
       $("#cuvant_tradus").html(
         "<br>" + xml
       );
     });
  }