function open_item(id){
	unselectAll_iterator();		
	document.getElementById("item_"+id).className='active';
	document.getElementById("iteminner_"+id).style.display='block';
	opacity("iteminner_"+id);
}
function unselectAll_iterator(){
	var i=0;
	while(document.getElementById("item_"+i)) {
		var item_current=document.getElementById("item_"+i);
		var iteminner_current=document.getElementById("iteminner_"+i);
		if(item_current.className == 'active') {
			item_current.className='';
			iteminner_current.style.display='none';
		}
	i++;
	}
}
function opacity(id, alpha){
	alpha = (!alpha ? 0 : alpha);
	var target = document.getElementById(id);
	target.style.opacity = (alpha/100);
	target.style.filter = 'alpha(opacity='+alpha+')';
	target.style.display = '';
	if(alpha < 100){
		setTimeout('opacity("'+id+'", '+(alpha+10)+')', 20);
	}
}
function volet_height(id,heightcurrent){
	var height = parseFloat(heightcurrent);
	var statut=document.getElementById('inner_promo_statut');
	var target=document.getElementById(id);
	target.style.height = height+"px";
	if(height > 0 && statut.className=='on'){
		setTimeout('volet_height("'+id+'", '+(height-10)+')', 10);
	}else if(height <170 && statut.className=='off'){
		setTimeout('volet_height("'+id+'", '+(height+10)+')', 10);
	}else if(height==170){
		statut.className="on";
		statut.innerHTML="Masquer";
	}else if(height==0){
		statut.className="off";
		statut.innerHTML="Afficher";
	}
}