/* Calque de contenu de la page */
var divpage = document.getElementById("page");

/* Fonctions de scrolling */
function scrollup()
	{
	if(divpage.scrollTop > 0)	divpage.scrollTop -= 5;
	timer = setTimeout("scrollup()",15);
	}

function scrolldown()
	{
	if(divpage.scrollTop < (divpage.scrollHeight - divpage.clientHeight))	divpage.scrollTop += 5;
	timer = setTimeout("scrolldown()",15);
	}

function scrollstop()
	{
	clearTimeout(timer);
	}

/* Cacher les boutons si le scrolling n'est pas necessaire */
if(divpage.scrollHeight <= divpage.clientHeight)
	{
	document.getElementById('scrollup').style.visibility = "hidden";
	document.getElementById('scrolldown').style.visibility = "hidden";
	}