var lacouche = ""; 
function voir(lacouche) 
{ 
var couche = ["compagnie","spectacles","fabrik"]; 
for (var i=0; i<couche.length; i++) { 
if (couche[i] == lacouche) { 
if (document.getElementById) { 
document.getElementById(lacouche).style.visibility = 'visible'; 
} 
else if (document.all) {
document.all.tags("div")[lacouche].style.visibility = 'visible'; 
} 
else if (document.layers) { 
document.layers[lacouche].visibility = 'show'; 
} 
var j = i; 
break; 
} 
} 
for (var i=0; i<couche.length; i++) { 
if (couche[i] != couche[j]) { 
if (document.getElementById) { 
document.getElementById(couche[i]).style.visibility = 'hidden'; 
} 
else if (document.all) { 
document.all.tags("div")[couche[i]].style.visibility = 'hidden'; 
} 
else if (document.layers) { 
document.layers[couche[i]].visibility = 'hide'; 
} 
} 
} 
} 

//nom fichier, width, height)
function popvid(fic,w,h) 
{
	
	//hauteur totale fenetre
	var ht = h;
	
	//centre fenetre
	if (document.all) {
		//ie4
		var xMax = screen.width, yMax = screen.height;
	} else if (document.layers) {
		//netscape 4
		var xMax = window.outerWidth, yMax = window.outerHeight;
	} else if (document.getElementById) {
		//ie5+ ns6+
		var xMax = 1024, yMax= 768;
	}
	var xOffset = (xMax - w)/2, yOffset = (yMax - ht)/2;

	//ouverture fenetre au centre
	popfen = window.open(fic,'video','menubar=no,resizable=no,scrollbars=no,width='+w+',height='+ht+',screenX='+xOffset+',screenY='+yOffset+',top='+yOffset+',left='+xOffset);
	
	//focus
	popfen.focus();
}