a201=new Image(73,30)
a201.src="img/tit_francais_off.gif"
a301=new Image(73,30)
a301.src="img/tit_francais_on.gif"
a202=new Image(91,30)
a202.src="img/tit_english_off.gif"
a302=new Image(91,30)
a302.src="img/tit_english_on.gif"

a203=new Image(73,30)
a203.src="../img/tit_francais_off.gif"
a303=new Image(73,30)
a303.src="../img/tit_francais_on.gif"
a204=new Image(91,30)
a204.src="../img/tit_english_off.gif"
a304=new Image(91,30)
a304.src="../img/tit_english_on.gif"

function menu_hide_and_seek(m) {
  if (document.getElementById) {
    var item = document.getElementById(m).style;
    if (item.display == "block") {
      item.display = "none";
    } else {
      item.display = "block";
    }
    return false;
  }
  return true;
}
function filter(imagename,objectsrc)  {
	var n=navigator.appName
	var v=parseInt(navigator.appVersion)
	var browsok=((n=="Netscape")&&(v>=3))
	var browsok2=((n=="Microsoft Internet Explorer")&&(v>=4))
	if ((browsok)||(browsok2))
		document.images[imagename].src=eval(objectsrc+".src")
}