function deroulHP(obj,nbr) {  

if (document.getElementById("section"+ obj).className == 'masquageHide') {
       for (i=1; i<=nbr; i++) {
       document.getElementById("section" + i).className = "masquageHide";
       document.getElementById("fleche" + i).src = "img/arrow_right_1.gif";
        }       
	   document.getElementById("section"+ obj ).className = "masquageShow";
      document.getElementById("fleche" + obj).src = "img/arrow_down_1.gif";
}
else { 
  	   document.getElementById("section"+obj).className = 'masquageHide' ; 
      document.getElementById("fleche" + obj).src = "img/arrow_right_1.gif";
}
}



function deroul_cours(obj,nbr) {  

if (document.getElementById("section"+ obj).className == 'masquageHide') {
       for (i=1; i<=nbr; i++) {
       document.getElementById("section" + i).className = "masquageHide";
       document.getElementById("pave" + i).className = "pave1";
       document.getElementById("fleche" + i).src = "img/arrow_right_2.gif";
        }       
	   document.getElementById("section"+ obj ).className = "masquageShow";
	   document.getElementById("pave"+ obj ).className = "pave1b";
      document.getElementById("fleche" + obj).src = "img/arrow_down_2.gif";
}
else { 
  	   document.getElementById("section"+obj).className = 'masquageHide' ; 
	   document.getElementById("pave"+ obj ).className = "pave1";
      document.getElementById("fleche" + obj).src = "img/arrow_right_2.gif";
}
}


function affiche_bulle(obj) {   document.getElementById("bulle"+obj).className = 'x911 bulle ' ; }

function cache_bulle(obj) {   document.getElementById("bulle"+obj).className = 'masquageHide' ; }