var ReferenceDeMaPopup = null;
var AncienneUrlPopUp;

function openWindow(url,largeur,hauteur,centre,scrollbars){
	var decalagegauche=0;
	var decalagehaut=0;
	if(centre){
		var defecranlargeur=screen.width;
		var defecranhauteur=screen.height;
		decalagegauche=(defecranlargeur-largeur)/2;
		decalagehaut=(defecranhauteur-hauteur)/2;
	}
	if (ReferenceDeMaPopup == null || ReferenceDeMaPopup.closed || AncienneUrlPopUp != url)
		ReferenceDeMaPopup = window.open (url,'PopUpPackWebSoludedia','location=no,toolbar=no,directories=no,menubar=no,resizable=yes,scrollbars=' + (scrollbars?'yes':'no') + ',status=no,left=' + decalagegauche + ',top=' + decalagehaut + ',width=' + largeur + ',height=' + hauteur );

	if (!ReferenceDeMaPopup || ReferenceDeMaPopup.closed)
	    window.location.href=url+"&nav=plein";
	else
		ReferenceDeMaPopup.focus();
}