Cacher is the code snippet organizer for pro developers

  
function ensureDigits(e) {
  e = e || window.event;  
  var charCode = parseInt(e.keyCode);
  var allowableCodes = [48,49,50,51,52,53,54,55,56,57,68,80,96,97,98,99,100,101,102,103,104,105,110,37,39,13,8,188,190,46,113,114,115,116,117,118,119,120,121,122,123, 67, 86];
  $('log').update("Ensure Digits:" + charCode);
  if (allowableCodes.indexOf(charCode) === -1) {
    e.stop();
  }
}