function openWindow(url,width,height)
  {
    leftPosition = (screen.availWidth-width)/2;
	topPosition = (screen.availHeight-height)/2;
	options = "width="+width+",height="+height+",top="+topPosition+",left="+leftPosition+",menubar=no,directories=no,resizable=no,scrollbars=yes,status=yes,location=no";
	newFenetre = window.open(url,'popUpTools',options);
	newFenetre.focus();
  }
  
  function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}