function visibilite(thingId)
{
	var targetElement;
	targetElement = document.getElementById(thingId) ;
	targetDiv = document.getElementById('i_' + thingId) ;

	if (targetElement.style.display == 'none')
	{
		targetElement.style.display = 'block' ;
		if (targetDiv) 
		{
		targetDiv.innerHTML = '<a href="javascript:visibilite(\'' + thingId + '\');" >masquer</a>' ;
		}
	} 

	else {
		targetElement.style.display = 'none' ;
		if (targetDiv) 
		{
		targetDiv.innerHTML = '<a href="javascript:visibilite(\'' + thingId + '\');" >afficher</a>' ;
		}
	}
}



function rollover(thingId,link)
{
	var targetElement;
	targetElement = document.getElementById(thingId) ;
	targetElement.src = link;
}

function click(thingId,src1,src2)
{
	var targetElement; var src;
	targetElement = document.getElementById(thingId) ;
	src = targetElement.src;
	if (src == src1) 
	{
	targetElement.src = src2;
	}
	else
	{
	targetElement.src = src1;
	}
}