function PopupCentrer(page,largeur,hauteur) {
  var top=(screen.height-hauteur)/2;
  var left=(screen.width-largeur)/2;
  window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+", scrollbars = yes");
}


function sh(calque)
{
	var calque = document.getElementById(calque);
	switch(calque.style.display)
	{
		case "block":	calque.style.display="none";break;
		case "none":	calque.style.display="block";break;
		default:	calque.style.display="block";
	}
}


function myLocation(url)
{	
	parent.location = url;
}