function popeup(){

	var largeur=500;
	var hauteur=130;
	//var top=(screen.height-hauteur)/2;
	//var left=(screen.width-largeur)/2;
	//var top=window.screenTop+300;
	//var left=window.screenLeft+380;
	var Hauteur = screen.height;
	var Largeur = screen.width;
	var top = Largeur -(window.innerWidth/2);
	var left = Hauteur -(window.innerHeight/2);
  
	var w=window.open('index.php?page=popest&menu=nav6&hl=fr_FR','popup',"top="+top+",left="+left+",width="+largeur+",height="+hauteur+",toolbar=no,scrollbars=no,resizable=yes");
	// w.document.close();
    	w.focus();
} 
function fermer(){
	if (navigator.appName.indexOf("Netscape") != -1){
		top.window.close();
	}
	else{
			self.opener=null;
			self.close();
			return false;
	}
}