var Class = { create: function() { return function() { this.initialize.apply(this, arguments);}
}
}
var Abstract = new Object(); Object.extend = function(destination, source) { for (property in source) { destination[property] = source[property];}
return destination;}
Object.inspect = function(object) { try { if (object == undefined) return 'undefined'; if (object == null) return 'null'; return object.inspect ? object.inspect() : object.toString();} catch (e) { if (e instanceof RangeError) return '...'; throw e;}
}
Function.prototype.bind = function() { var __method = this, args = $A(arguments), object = args.shift(); return function() { return __method.apply(object, args.concat($A(arguments)));}
}
Function.prototype.bindAsEventListener = function(object) { var __method = this; return function(event) { return __method.call(object, event || window.event);}
}
Object.extend(Number.prototype, { toColorPart: function() { var digits = this.toString(16); if (this < 16) return '0' + digits; return digits;}, succ: function() { return this + 1;}, times: function(iterator) { $R(0, this, true).each(iterator); return this;}
}); var Try = { these: function() { var returnValue; for (var i = 0; i < arguments.length; i++) { var lambda = arguments[i]; try { returnValue = lambda(); break;} catch (e) {}
}
return returnValue;}
}
var PeriodicalExecuter = Class.create(); PeriodicalExecuter.prototype = { initialize: function(callback, frequency) { this.callback = callback; this.frequency = frequency; this.currentlyExecuting = false; this.registerCallback();}, registerCallback: function() { setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);}, onTimerEvent: function() { if (!this.currentlyExecuting) { try { this.currentlyExecuting = true; this.callback();} finally { this.currentlyExecuting = false;}
}
}
}
function $() { var elements = new Array(); for (var i = 0; i < arguments.length; i++) { var element = arguments[i]; if (typeof element == 'string')
element = document.getElementById(element); if (arguments.length == 1)
return element; elements.push(element);}
return elements;}
function $() { var elements = new Array(); for (var i = 0; i < arguments.length; i++) { var element = arguments[i]; if (typeof element == 'string')
element = document.getElementById(element); if (arguments.length == 1)
return element; elements.push(element);}
return elements;}
if (!window.Event) { var Event = new Object();}
Object.extend(Event, { KEY_BACKSPACE: 8, KEY_TAB: 9, KEY_RETURN: 13, KEY_ESC: 27, KEY_LEFT: 37, KEY_UP: 38, KEY_RIGHT: 39, KEY_DOWN: 40, KEY_DELETE: 46, element: function(event) { return event.target || event.srcElement;}, isLeftClick: function(event) { return (((event.which) && (event.which == 1)) || ((event.button) && (event.button == 1)));}, pointerX: function(event) { return event.pageX || (event.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft));}, pointerY: function(event) { return event.pageY || (event.clientY + (document.documentElement.scrollTop || document.body.scrollTop));}, stop: function(event) { if (event.preventDefault) { event.preventDefault(); event.stopPropagation();} else { event.returnValue = false; event.cancelBubble = true;}
}, findElement: function(event, tagName) { var element = Event.element(event); while (element.parentNode && (!element.tagName || (element.tagName.toUpperCase() != tagName.toUpperCase())))
element = element.parentNode; return element;}, observers: false, _observeAndCache: function(element, name, observer, useCapture) { if (!this.observers) this.observers = []; if (element.addEventListener) { this.observers.push([element, name, observer, useCapture]); element.addEventListener(name, observer, useCapture);} else if (element.attachEvent) { this.observers.push([element, name, observer, useCapture]); element.attachEvent('on' + name, observer);}
}, unloadCache: function() { if (!Event.observers) return; for (var i = 0; i < Event.observers.length; i++) { Event.stopObserving.apply(this, Event.observers[i]); Event.observers[i][0] = null;}
Event.observers = false;}, observe: function(element, name, observer, useCapture) { var element = $(element); useCapture = useCapture || false; if (name == 'keypress' &&
(navigator.appVersion.match(/Konqueror|Safari|KHTML/) || element.attachEvent))
name = 'keydown'; this._observeAndCache(element, name, observer, useCapture);}, stopObserving: function(element, name, observer, useCapture) { var element = $(element); useCapture = useCapture || false; if (name == 'keypress' &&
(navigator.appVersion.match(/Konqueror|Safari|KHTML/) || element.detachEvent))
name = 'keydown'; if (element.removeEventListener) { element.removeEventListener(name, observer, useCapture);} else if (element.detachEvent) { element.detachEvent('on' + name, observer);}
}
}); Event.observe(window, 'unload', Event.unloadCache, false); 
//◆本家のものと違う
document.getElementsByClassName = function (className) {
    var i, j, eltClass;
    var objAll = document.getElementsByTagName ? document.getElementsByTagName("*") : document.all;
    var objCN = new Array();
    for (i = 0; i < objAll.length; i++) {
        eltClass = objAll[i].className.split(/\s+/);
        for (j = 0; j < eltClass.length; j++) {
            if (eltClass[j] == className) {
                objCN.push(objAll[i]);
                break;
            }
        }
    }
    return objCN;
}