var Timer=null;
var Pas = 5;
function moveLayer(id,Sens) {
	var contenu = "contenu"+id;
	var support = "support"+id;
	var Objet=document.getElementById(contenu);
    if(parseInt(Objet.style.left) + (Pas*Sens)>0)  {
		clearTimeout(Timer);
	}
	else if(parseInt(Objet.style.left) + (Pas*Sens)<-(Objet.offsetWidth-document.getElementById(support).offsetWidth)) {
		clearTimeout(Timer);
	}
    else {
        Objet.style.left = (parseInt(Objet.style.left) + (Pas*Sens)) + "px";
	}
	Timer = setTimeout("moveLayer(" + id + "," + Sens + ");", 30);
}