function slideshow_fixe(divId,direction,conteneur_dim,vitesse)
{
	divId2=eval(document.getElementById(divId));
	divLarg=divId2.offsetWidth;
	if(divId2.offsetHeight)
	{
		divHaut=divId2.offsetHeight;
	}
	else if(divId2.style.pixelHeight)
	{
		divHaut=divId2.style.pixelHeight;
	}

	if (divId2.style.top == "" || divId2.style.left == "")
	{
		divId2.style.top=0+"px";
		divId2.style.left=0+"px";
	}
	if(direction=='bas')
	{
		if(parseInt(divId2.style.top)< 0)
		{
			divId2.style.top=parseInt(divId2.style.top)+vitesse+"px";
		}
	}
	if(direction=='haut')
	{
		if(parseInt(divId2.style.top) > conteneur_dim-divHaut)
		{
			divId2.style.top=parseInt(divId2.style.top)-vitesse+"px";
		}
	}
	if(direction=='gauche')
	{
		if(parseInt(divId2.style.left) > conteneur_dim-divLarg)
		{
			divId2.style.left=parseInt(divId2.style.left)-vitesse+"px";
		}
	}
	if(direction=='droite')
	{
		if(parseInt(divId2.style.left) < 0)
		{
			divId2.style.left=parseInt(divId2.style.left)+vitesse+"px";
		}
	}
}