// *****************************************************************************
function enviar_formulario( f, lang ) {

  var formu = $(f).toQueryString();
  on_loading('div_formcontact', 'div_loading', '', '/thm/img/animgifs/indicator_verybig.gif');

//  onWaiting('div_loading', '', '/thm/img/animgifs/sendingmail.gif' );
//  $('div_formcontact').setStyle('display','none');

  new Ajax( 'index.php' +'?mod=contact&exec=sendform&ajax=1&lng='+lang,{//'index.php?mod=contacte&exec=sendform&ajax=1', {
    method: "POST",
    update: $('formcontact'),
    postBody: formu,
    evalScripts: true,
    onComplete: function() {
//      document.location.href="./";
    }
  }).request();
}