function openFormOrOther() {
    if ( document.getElementById("pays").value == '1' ) {
      $("#youAreFrance").slideUp('fast');
      $("#confirmNoPro").slideDown('fast');
      $("#youAreOther").slideDown('fast');
      $("#commonBlock").slideDown('fast');
      $("#commonOther").slideUp('fast');
    } else if ( document.getElementById("pays").value == '10' ) {
      $("#youAreFrance").slideDown('fast');
      $("#confirmNoPro").slideDown('fast');
      $("#youAreOther").slideUp('fast');
      $("#commonBlock").slideDown('fast');
      $("#commonOther").slideUp('fast');
    } else if ( document.getElementById("pays").value == '31' ) {
      $("#youAreFrance").slideUp('fast');
      $("#youAreOther").slideDown('fast');
      $("#commonBlock").slideDown('fast');
      $("#commonOther").slideDown('fast');
    } else if ( document.getElementById("pays").value == '19' ) {
      $("#youAreFrance").slideUp('fast');
      $("#youAreOther").slideDown('fast');
      $("#commonOther").slideDown('fast');
      $("#commonBlock").slideDown('fast');
    } else {
      $("#youAreFrance").slideUp('fast');
      $("#commonOther").slideUp('fast');
      $("#confirmNoPro").slideUp('fast');
      $("#youAreOther").slideDown('fast');
      $("#commonBlock").slideDown('fast');      
    }

    return false;
  }