function detectPopupBlocker() {
  var myTest = window.open("about:blank","","directories=no,height=1,width=1,menubar=no,resizable=no,scrollbars=no,status=no,titlebar=no,top=0,left=0,location=no");
  if (!myTest) {
    window.location="info_login.php";
  } else {
    myTest.close();
	
  }
}