function affiche_detail(div){
	cache_detail(div);
	if(document.getElementById(div).style.display=='none'){
		new Effect.BlindDown(div, { duration: 0.8 });
	}else{	
		new Effect.BlindUp(div, { duration: 0.8 });
	}
}

function cache_detail(div){
	if(document.getElementById('Layer1') && document.getElementById('Layer1').style.display!='none' && div!='Layer1'){
		new Effect.BlindUp('Layer1', { duration: 0.8 });
	}
	if(document.getElementById('Layer2') && document.getElementById('Layer2').style.display!='none' && div!='Layer2'){
		new Effect.BlindUp('Layer2', { duration: 0.8 });
	}
	if(document.getElementById('Layer3') && document.getElementById('Layer3').style.display!='none' && div!='Layer3'){
		new Effect.BlindUp('Layer3', { duration: 0.8 });
	}
	if(document.getElementById('Layer4') && document.getElementById('Layer4').style.display!='none' && div!='Layer4'){
		new Effect.BlindUp('Layer4', { duration: 0.8 });
	}
}