if (document.images) {
  haut_on = new Image();
  haut_on.src = "/picts/boutons/bt_haut_de_page_on.gif";
  haut_off = new Image();
  haut_off.src = "/picts/boutons/bt_haut_de_page.gif";
  back_on = new Image();
  back_on.src = "/picts/boutons/bt_back_on.gif";
  back_off = new Image();
  back_off.src = "/picts/boutons/bt_back.gif";
  forward_on = new Image();
  forward_on.src = "/picts/boutons/bt_forward_on.gif";
  forward_off = new Image();
  forward_off.src = "/picts/boutons/bt_forward.gif";
  retour_on = new Image();
  retour_on.src = "/picts/boutons/bt_retour_on.gif";
  retour_off = new Image();
  retour_off.src = "/picts/boutons/bt_retour.gif";
  btinteractif_off = new Image();
  btinteractif_off.src="/picts/v_ori/o_bt/ob_interactif_off.gif";
  btinteractif_on = new Image();
  btinteractif_on.src="/picts/v_ori/o_bt/ob_interactif_on.gif";
}

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function popup(url, w, h, sc) {
window.open(url, '', 'resizable=yes,scrollbars=' + sc + ',menubar=no,width=' + w + ',height=' + h);
}