function OuvrirPopup(url,longueur,hauteur) {
  var top=(screen.height-hauteur)/2;
  var left=(screen.width-longueur)/2;
window.open(url,"","top="+top+",left="+left+",width="+longueur+",height="+hauteur+"")
}

function popup(page) {
	window.open(page,'popup','toolbar=0, location=0, directories=0, status=0, scrollbars=1, resizable=0, copyhistory=0, menuBar=0, width=500, height=500');	
}