//Js switch page
var numPage = 0;

function showPreviousPage()
{
	//Affichage / Masquage des pages concernés
	if (document.getElementById('page'+numPage))
		document.getElementById('page'+numPage).style.display = 'none';
	numPage = (Number(numPage)-1 > 0 ? Number(numPage)-1 : '0');
	document.getElementById('page'+numPage).style.display = 'block';
	switchFooterProduit();
}

function showNextPage()
{
	if (document.getElementById('page'+numPage))
	{
		document.getElementById('page'+numPage).style.display = 'none';
		if (document.getElementById('page'+(Number(numPage)+1))) 
			numPage = Number(numPage)+1;
		document.getElementById('page'+numPage).style.display = 'block';
	}
	switchFooterProduit();
}

function switchFooterProduit()
{
	var visibility = (numPage == '0' ? 'hidden' : 'visible');
	document.getElementById('previousPage').style.visibility = visibility;
	var visibility = (document.getElementById('page'+(Number(numPage)+1)) ? 'visible' : 'hidden');
	document.getElementById('nextPage').style.visibility = visibility;
	document.getElementById('cuurentPage').innerHTML = (Number(numPage)+1);
}