function toggle(id){
	document.getElementById(id).style.display= (document.getElementById(id).style.display=='none') ? "block" : "none";
}

function display(id){
	document.getElementById(id).style.display="block";
}

function zoomin(imgPetite, imgGrande){
	document.getElementById(imgPetite).style.display='none';
	document.getElementById(imgGrande).style.display='block'; 
	return false;
}
function zoomout(imgPetite, imgGrande){
	document.getElementById(imgPetite).style.display='block';
	document.getElementById(imgGrande).style.display='none'; 
	return false;
}