function ouvrir_fen(page_url,id_win,longueur,hauteur) 
{
	var tempo;  
   
    var haut=(screen.height-hauteur)/2;
	var Gauche=(screen.width-longueur)/2;
   
	tempo =  "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,top="+haut+",left="+Gauche+",width=" + longueur + ",height=" + hauteur ;
	id_win2 = window.open ( page_url, id_win, tempo );
    id_win2.focus();
}

function ouvrir_fen2(page_url,id_win,longueur,hauteur) 
{
	var tempo;   
	tempo =  "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=" + longueur + ",height=" + hauteur ;
	var id_win2 = window.open ( page_url, id_win, tempo );
}

function changer_ouvreur ( page_url )
{
		top.opener.location.href = page_url;
		self.window.focus();	
}

function changer_ouvreur2 ( page_url )
{
		top.opener.location.href = page_url;
}

function changer_frame ( page_url )
{
alert(top.opener.m_contenu.location.href);

    top.opener.m_contenu.location.href=page_url;
	
self.window.focus();
}