function display_menu(obj) {  
   document.getElementById(obj).className = 'menu masquageShow' ; 
   document.getElementById(obj+'b').className = 'ombre_menu masquageShow' ; 
}
function hide_menu(obj) {  
   document.getElementById(obj).className = 'menu masquageHide' ; 
   document.getElementById(obj+'b').className = 'ombre_menu masquageHide' ; 
}









function affiche_salle(obj) {  

document.getElementById('salle1').className = 'masquageHide' ; 
document.getElementById('salle2').className = 'masquageHide' ; 
document.getElementById('salle3').className = 'masquageHide' ; 

   document.getElementById(obj).className = 'boite_info masquageShow' ; 
   document.getElementById(obj+"2").className = 'x1013 vert_fonce masquageShow' ; 
}
function masq_salle(obj) {  
   document.getElementById(obj).className = 'boite_info masquageHide' ; 
}



function affiche_info_parc() {  
   document.getElementById("info_parc").className = 'masquageShow' ; 
}
function masq_info_parc() {  
   document.getElementById("info_parc").className = 'masquageHide' ; 
}


function affiche_tarifs() {  
   document.getElementById("tarifs").className = 'masquageShow' ; 
}
function masq_tarifs() {  
   document.getElementById("tarifs").className = 'masquageHide' ; 
}

function affiche_carte() {  
   document.getElementById("carte").className = 'boite_carte' ; 
   document.getElementById("carte2").className = 'x1013 vert_fonce' ; 
}
function masq_carte() {  
   document.getElementById("carte").className = 'masquageHide' ; 
}

function deroulH(obj,nbr) {  

if (document.getElementById("objH"+ obj).className == 'masquageHide') {
       for (i=1; i<=nbr; i++) {
       document.getElementById("objH" + i).className = "masquageHide";
        }       
	   document.getElementById("objH"+ obj ).className = "masquageShow";
}
else { 
   document.getElementById("objH"+obj).className = 'masquageHide' ; 
}
}



function deroul(obj,nbr) {  

if (document.getElementById("obj"+ obj).className == 'masquageHide') {
       for (i=1; i<=nbr; i++) {
       document.getElementById("obj" + i).className = "masquageHide";
        }       
	   document.getElementById("obj"+ obj ).className = "masquageShow";
}
else { 
   document.getElementById("obj"+obj).className = 'masquageHide' ; 
}
}




function aff_bulle(obj) {  
	document.getElementById("bulle"+obj+"FR").className = 'masquageShow' ; 
}
function masq_bulle(obj) {  
   document.getElementById("bulle"+obj+"FR").className = 'masquageHide' ; 
}
function aff_bulleEN(obj) {  
	document.getElementById("bulle"+obj+"EN").className = 'masquageShow' ; 
}
function masq_bulleEN(obj) {  
   document.getElementById("bulle"+obj+"EN").className = 'masquageHide' ; 
}


function affiche_item(obj) {  
	//changeOpac(0,"bulleplus");
   //document.getElementById("bulleplus").className = 'masquageShow' ; 
	//setTimeout("opacity('bulleplus', 0, 100, 1500)",3000);
	//setTimeout("opacity('bulleplus', 100, 0, 1500)",12000);
	 
}

// fait apparaitre un objet en fade in
function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;
	 if(opacStart > opacEnd) {
for(i = opacStart; i >= opacEnd; i--) {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
} 
else if(opacStart < opacEnd) {
for(i = opacStart; i <= opacEnd; i++) {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
}
}
function changeOpac(opacity, id) {
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
}