function ouvrirPopup (pFichier, pLargeur, pHauteur)
{
var posX = (screen.width / 2) - (pLargeur / 2);
var posY = (screen.height / 2) - (pHauteur / 2);
window.open(pFichier,"popup","width = " + pLargeur + ", height = " + pHauteur + ", left = " + posX + ", top = " + posY + ", resizable = 0, toolbar = no, menubar=no, scrollbars= 1, location=no, directories=no, status=no");
}