// JavaScript Document
//ex: trouveObjet('fr')
function trouveObjet(name) {
  var x;  

  if(document[name]) { x=document[name];}
  if(!x&&document.all) { x=document.all[name]; }
  if(!x&&document.getElementById) { x=document.getElementById(name);}
  
  return x;
}
//ex: rollover('fr')
function rollover(name) {
	
  var obj=trouveObjet(name);
  var oldSrc=obj.src;
  var myOnRegExp= new RegExp("-on","g");
  var myOffRegExp= new RegExp("-off","g");
  var newSrc;
  
  if(oldSrc.search(myOnRegExp) == -1) {
  	if(oldSrc.search(myOffRegExp) == -1) {
  	} else {
  	newSrc=oldSrc.replace(myOffRegExp,"-on");
  	}
  } else {
  	newSrc=oldSrc.replace(myOnRegExp,"-off");
  }
  obj.src=newSrc;
}