var Base=function(){};Base.extend=function(_instance,_static){var extend=Base.prototype.extend;Base._prototyping=true;var proto=new this;extend.call(proto,_instance);delete Base._prototyping;var constructor=proto.constructor;var klass=proto.constructor=function(){if(!Base._prototyping){if(this._constructing||this.constructor==klass){this._constructing=true;constructor.apply(this,arguments);delete this._constructing;}else if(arguments[0]!=null){return(arguments[0].extend||extend).call(arguments[0],proto);}}};klass.ancestor=this;klass.extend=this.extend;klass.forEach=this.forEach;klass.implement=this.implement;klass.prototype=proto;klass.toString=this.toString;klass.valueOf=function(type){return(type=="object")?klass:constructor.valueOf();};extend.call(klass,_static);if(typeof klass.init=="function")klass.init();return klass;};Base.prototype={extend:function(source,value){if(arguments.length>1){var ancestor=this[source];if(ancestor&&(typeof value=="function")&&(!ancestor.valueOf||ancestor.valueOf()!=value.valueOf())&&/\bbase\b/.test(value)){var method=value.valueOf();value=function(){var previous=this.base||Base.prototype.base;this.base=ancestor;var returnValue=method.apply(this,arguments);this.base=previous;return returnValue;};value.valueOf=function(type){return(type=="object")?value:method;};value.toString=Base.toString;}
this[source]=value;}else if(source){var extend=Base.prototype.extend;if(!Base._prototyping&&typeof this!="function"){extend=this.extend||extend;}
var proto={toSource:null};var hidden=["constructor","toString","valueOf"];var i=Base._prototyping?0:1;while(key=hidden[i++]){if(source[key]!=proto[key]){extend.call(this,key,source[key]);}}
for(var key in source){if(!proto[key])extend.call(this,key,source[key]);}}
return this;},base:function(){}};Base=Base.extend({constructor:function(){this.extend(arguments[0]);}},{ancestor:Object,version:"1.1",forEach:function(object,block,context){for(var key in object){if(this.prototype[key]===undefined){block.call(context,object[key],key,object);}}},implement:function(){for(var i=0;i<arguments.length;i++){if(typeof arguments[i]=="function"){arguments[i](this.prototype);}else{this.prototype.extend(arguments[i]);}}
return this;},toString:function(){return String(this.valueOf());}});