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Enumerable={each:function(B){var A=0;try{this._each(function(D){B(D,A++)})}catch(C){if(C!=$break){throw C}}return this},eachSlice:function(C,B){var A=-C,D=[],E=this.toArray();while((A+=C)<E.length){D.push(E.slice(A,A+C))}return D.map(B)},all:function(B){var A=true;this.each(function(D,C){A=A&&!!(B||Prototype.K)(D,C);if(!A){throw $break}});return A},any:function(B){var A=false;this.each(function(D,C){if(A=!!(B||Prototype.K)(D,C)){throw $break}});return A},collect:function(B){var A=[];this.each(function(D,C){A.push((B||Prototype.K)(D,C))});return A},detect:function(B){var A;this.each(function(D,C){if(B(D,C)){A=D;throw $break}});return A},findAll:function(B){var A=[];this.each(function(D,C){if(B(D,C)){A.push(D)}});return A},grep:function(C,B){var A=[];this.each(function(F,E){var D=F.toString();if(D.match(C)){A.push((B||Prototype.K)(F,E))}});return A},include:function(A){var B=false;this.each(function(C){if(C==A){B=true;throw $break}});return 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this.options.insertion(B,A)}else{B.update(A)}}if(this.success()){if(this.onComplete){setTimeout(this.onComplete.bind(this),10)}}}});Ajax.PeriodicalUpdater=Class.create();Ajax.PeriodicalUpdater.prototype=Object.extend(new Ajax.Base(),{initialize:function(A,C,B){this.setOptions(B);this.onComplete=this.options.onComplete;this.frequency=(this.options.frequency||2);this.decay=(this.options.decay||1);this.updater={};this.container=A;this.url=C;this.start()},start:function(){this.options.onComplete=this.updateComplete.bind(this);this.onTimerEvent()},stop:function(){this.updater.options.onComplete=undefined;clearTimeout(this.timer);(this.onComplete||Prototype.emptyFunction).apply(this,arguments)},updateComplete:function(A){if(this.options.decay){this.decay=(A.responseText==this.lastText?this.decay*this.options.decay:1);this.lastText=A.responseText}this.timer=setTimeout(this.onTimerEvent.bind(this),this.decay*this.frequency*1000)},onTimerEvent:function(){this.updater=new 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