09/11/11 22:17:45
prototype.jsに書いてあるだろ。
/* Prototype JavaScript framework, version 1.6.1
* (c) 2005-2009 Sam Stephenson
*
* Prototype is freely distributable under the terms of an MIT-style license.
* For details, see the Prototype web site: URLﾘﾝｸ(www.prototypejs.org)
*
*--------------------------------------------------------------------------*/