function charger()
{	
	if (document.body)
	{
		var larg = (document.body.clientWidth);
		var haut = (document.body.clientHeight);
		var margeLeft = 0;

		document.getElementById("centrer").style.position = "absolute";
		document.getElementById("centrer").style.top = "0px";
		margeLeft = (larg-970)/2;
		
		if(margeLeft>0)
		{
			document.getElementById("centrer").style.left = margeLeft+"px";
		}
//		alert("largeur : "+larg+" - largeur site 790 - marge left : "+margeLeft);
	}
}