function opacite (id,action)
{
	if(action == "on")
	{
		document.getElementById(id).style.opacity = "0.8";
		document.getElementById(id).style.filter = 'alpha(opacity=80)';
	}
	else
	{
		document.getElementById(id).style.opacity = "1";
		document.getElementById(id).style.filter = 'alpha(opacity=100)';
	}
}

function vign (id,action)
{
	if(action == "on")
	{
		document.getElementById("span" + id).style.display = "inline";
	}
	else
	{
		document.getElementById("span" + id).style.display = "none";
	}
}

function opaciteBis(id,num)
{
	if(num != 100)
	{
		document.getElementById("index" + id).style.filter = "alpha(opacity=" + num + ")";
		document.getElementById("index" + id).style.opacity = num / 100;
		num++;
		setTimeout("opaciteBis('" + id + "','" + num + "')",20);
	}
}

function affIndex(num, total)
{
	for(i=1;i<=total;i++)
	{
		document.getElementById("index" + i).style.display = "none";
	}
	
	document.getElementById("index" + num).style.filter = "alpha(opacity=0)";
	document.getElementById("index" + num).style.opacity = "0";
	document.getElementById("index" + num).style.display = "inline";
	
	opaciteBis(num,0);
	
	if(num == total) num = 1;
	else num++;
	
	setTimeout("affIndex('" + num + "','" + total + "')",3000);
}