function na_preload_img()

{

  var img_list = na_preload_img.arguments;

  if (document.preloadlist == null)

    document.preloadlist = new Array();

  var top = document.preloadlist.length;

  for (var i=0; i < img_list.length; i++) {

    document.preloadlist[top+i]     = new Image;

    document.preloadlist[top+i].src = img_list[i+1];

  }

}



function na_change_img_src(name, nsdoc, rpath, preload)

{

  var img = eval((navigator.appName == 'Netscape') ? nsdoc+'.'+name : 'document.all.'+name);

  if (name == '')

    return;

  if (img) {

    img.altsrc = img.src;

    img.src    = rpath;

  }

}



function na_restore_img_src(name, nsdoc)

{

  var img = eval((navigator.appName == 'Netscape') ? nsdoc+'.'+name : 'document.all.'+name);

  if (name == '')

    return;

  if (img && img.altsrc) {

    img.src    = img.altsrc;

    img.altsrc = null;

  }

}



function texte_ds_barre_etat(statu){ status=statu }

function popup(addresse,param)

{

window.open(addresse+'?'+param,'','toolbar=no,location=no,directories=no,status=yes,scrollbars=yes,resizable=yes,copyhistory=no');

}