function LostTextInput(element) {
  if ( element.value == "Mot clef..." ) {
    element.value = "";
  }
}

function PutTextInput(element) {
  if ( element.value == "" ) {
    element.value = "Mot clef...";
  }
}

function submit_onkey(touche) {
  if ( touche == 13 ) {
    document.getElementById("searchwords").submit();
  }
}