var hauteur = haut();



function changeimg (what,ID) {
	document.getElementById(ID).src = "img/" + ID + what + ".jpg" ;
}
function changeactu (img) {
	document.getElementById('actu').src = "img/actu_" + img + ".jpg" ;
}
function messico (what,ID) {
	if (what == " "){
		document.getElementById(ID).src = "img/transparent.gif" ;
	
	}
	else {
		document.getElementById(ID).src = "img/txt_" +  what + ".jpg" ;
		}
}
function messicoen (what,ID) {
	if (what == " "){
		document.getElementById(ID).src = "../img/transparent.gif" ;
	
	}
	else {
		document.getElementById(ID).src = "../img/txt_" +  what + "_en.jpg" ;
		}
}
function nouveau() {
	var w=window.open('nouveau.html','name','toolbar=no,status=no,scrollbars=no,location=no,menubar=no,directories=no,width=365,height=370')
    w.document.close();
    w.focus();
}
function friction_anim() {
	var w=window.open('friction_anim.html','name','toolbar=no,status=no,scrollbars=no,location=no,menubar=no,directories=no,width=365,height=370')
    w.document.close();
    w.focus();
}

function haut() {

var ht = window.innerHeight;

if (ht < 495) {
	hauteur = 0;
	}
else {
	hauteur = ht - 495;
	hauteur /= 2;
	}
return hauteur;
}