function capLock(e){
 kc = e.keyCode?e.keyCode:e.which;
 sk = e.shiftKey?e.shiftKey:((kc == 16)?true:false);
 if(((kc >= 65 && kc <= 90) && !sk)||((kc >= 97 && kc <= 122) && sk))
  document.getElementById('AspNet-Login-CapLockWarningPanel').style.visibility = 'visible';
 else
  document.getElementById('AspNet-Login-CapLockWarningPanel').style.visibility = 'hidden';
}