function getPath() {
  var pn=window.location.pathname;
  var i=pn.indexOf('index.php');
  if (i>=0)
    return pn.substring(0, i-1);
  if (pn[pn.length-1]=='/')
    return pn.substring(0, pn.length-1);
  return pn;
}

function animateAccueil() {
  var acc=getElement('CadreAnime');
  acc.posX=0;
  acc.cur = new Date();
  var speed=50;
  var timer=setInterval(function () {
    var newdate = new Date();
    var p=(newdate.getTime()-acc.cur.getTime())/speed;
    var oacc=acc.posX;
    acc.posX+=p;
    if (Math.round(acc.posX)!=Math.round(oacc)) {
      setStyle(acc, {'background-position':Math.round(acc.posX)+'px 0px'});
    }
    acc.cur = newdate;
  },speed);
}