Modello.ajax={version:'0.0.6',date:'2006-04-18'}
Class.create().register('modello.ajax.Connection').get=function(){var _conn=null;try{_conn=new ActiveXObject('Msxml2.XMLHTTP');}catch(e){try{_conn=new ActiveXObject('Microsoft.XMLHTTP');}catch(E){_conn=null;}}
if(!_conn&&typeof XMLHttpRequest!='undefined'){_conn=new XMLHttpRequest();}
return _conn;}
Class.create().register('modello.ajax.Request').construct=function(){this.url='';this.method='';this.data='';this.busy=false;var _conn=null;var _emptyMethod=function(){};var _handler=_emptyMethod;var _requestHeaders={};var _state=['Uninitialized','Loading','Loaded','Interactive','Complete'];var _response=null;this.initialize=function(url,method,data){_conn=Class.get('modello.ajax.Connection').get();if(!_conn){throw new Error(this+' initialize error: Connection establish faild');}
this.url=url||'';this.method=method||'GET';this.data=data||'';for(key in _requestHeaders){delete _requestHeaders[key];}}
this.reset=function(){if(!this.busy){for(key in _requestHeaders){_conn.setRequestHeader(key,'');}
_requestHeaders={};for(key in _requestHeaders){delete _requestHeaders[key];}}}
this.abort=function(){if(this.busy)_conn.abort();}
this.setURL=function(url){this.url=url;}
this.setMethod=function(method){this.method=method;}
this.setData=function(data){this.data=data;}
this.setHandler=function(handler){_handler=handler;}
this.setHeader=function(key,value){_requestHeaders[key]=value;}
this.addHeader=function(header){var ret=header.split(/:\s*/);this.setHeader(ret[0],ret[1]);}
this.open=function(async){var async=async||false;if(this.busy){throw new Error(this+' open error: Network busy');}
this.busy=true;_response=null;try{_conn.open(this.method.toUpperCase(),this.url,async);if(async){_conn.onreadystatechange=Function.bind(this,_onStateChange);}else{_conn.onreadystatechange=_emptyMethod;}
for(key in _requestHeaders){_conn.setRequestHeader(key,_requestHeaders[key]);}
if(this.method=='POST'){_conn.setRequestHeader('Content-Type','application/x-www-form-urlencoded');_conn.send(this.data);}else{_conn.send(null);}}catch(e){this.onException(e);}
if(!async){this.busy=false;_response=Class.get('modello.ajax.Response').create(this);return _response;}}
this.getState=function(){return _state[_conn.readyState];}
this.getConnection=function(){return _conn;}
this.getResponse=function(){return _response;}
this.onException=function(e){throw(e);}
var _onStateChange=function(){var state=_state[_conn.readyState];try{if(state=='Complete'){_response=Class.get('modello.ajax.Response').create(this);_handler(_response);_conn.onreadystatechange=_emptyMethod;this.busy=false;}
if(typeof this['on'+state]=='function'){this['on'+state]();}}catch(e){this.onException(e);}}}
Class.create().register('modello.ajax.Response').construct=function(){var _conn=null;this.initialize=function(request){if(request.getState()!='Complete'){throw new Error(this+' initialize error: request is not complete');}
_conn=request.getConnection();}
this.getStatus=function(){return _conn.status;}
this.getStatusText=function(){return _conn.statusText?_conn.statusText:_conn.status;}
this.getHeader=function(key){return _conn.getResponseHeader(key);}
this.getAllHeaders=function(){return _conn.getAllResponseHeaders();}
this.getRawHeader=function(){return['HTTP/1.x',this.getStatus(),this.getStatusText()].join(' ')+'\r\n'+this.getAllHeaders();}
this.getText=function(){return _conn.responseText;}
this.getXML=function(){return _conn.responseXML;}}
Class.create().register('modello.ajax.Urllib').urlparse=function(url){var ret={};var arr=url.split('://',2);if(arr.length>1){ret.scheme=arr[0];var host=arr[1];arr=host.split('/');if(arr.length<2){ret.host=arr[0];return ret;}else{var path=arr.slice(1).join('/');var host=arr[0];arr=host.split('@',2);if(arr.length>1){var host=arr[1];var user=arr[0];arr=user.split(':',2);ret.user=arr[0];if(arr.length>1){ret.pass=arr[1];}}else{var host=arr[0];}
arr=host.split(':',2);ret.host=arr[0];if(arr.length>1){ret.port=arr[1];}}}else{var path=arr[0];}
arr=path.split('?');ret.path=arr[0];if(typeof ret.host!='undefined'){ret.path='/'+ret.path;}
if(arr.length>1){var query=arr.slice(1).join('?');arr=query.split('#');if(arr.length>1){ret.query=arr.slice(0,-1).join('#');ret.flagment=arr[arr.length-1];}else{ret.query=arr[0];}}
return ret;}
Class.get('modello.ajax.Urllib').urljoin=function(base,url){var ret1=Class.get('modello.ajax.Urllib').urlparse(base);var ret2=Class.get('modello.ajax.Urllib').urlparse(url);if(typeof ret2.scheme!='undefined'){return url;}
if(!ret2.path){return base;}
var host='';if(ret1.scheme){host=ret1.scheme+'://';}
if(ret1.user){host+=ret1.user;if(ret1.pass){host+=':'+ret1.pass;}
host+='@';}
if(ret1.host){host+=ret1.host;}
if(ret1.port){host+=':'+ret1.port;}
var path=ret2.path;if(path.charAt(0)!='/'){var arr=ret1.path.split('/');arr[arr.length-1]=path;path=arr.join('/');}
var items=path.split('/');while(true){var success=false;for(var i=1;i<items.length;i++){if(items[i]=='..'&&items[i-1]&&items[i-1]!='..'){Array.removeAt(items,i);Array.removeAt(items,i-1);success=true;break;}}
if(!success){break;}}
path=items.join('/');if(ret2.query){path+='?'+ret2.query;}
if(ret2.flagment){path+='#'+ret2.flagment;}
return host+path;}
Class.get('modello.ajax.Urllib').urlget=(function(){var _request_pool=[];var _reuse_request=function(chunnel){if(typeof chunnel=='string'){if(typeof _request_pool[chunnel]=='undefined'){var request=Class.get('modello.ajax.Request').create();_request_pool[chunnel]=request;}else{var request=_request_pool[chunnel];}
return request.busy?false:request;}
for(var i=0;i<_request_pool.length;i++){if(!_request_pool[i].busy){return _request_pool[i];}}
_request_pool[i]=Class.get('modello.ajax.Request').create();return _request_pool[i];}
return function(url,data,callback,chunnel,headers){var data=data||'';if(location.protocol.slice(0,4).toLowerCase()!='http'){throw new Error(this+' urlget error: Please use this method in http environment');}
var url=Class.get('modello.ajax.Urllib').urljoin(location.href,url);var ret1=Class.get('modello.ajax.Urllib').urlparse(url);var ret2=Class.get('modello.ajax.Urllib').urlparse(location.href);if(ret1.scheme.toLowerCase()!='http'){throw new Error(this+' urlget error: Only http protocol is supported');}
request=_reuse_request(chunnel);if(!request){return false;}
request.reset();if(ret1.host==ret2.host){url+=url.indexOf('?')<0?'?':'&';request.setURL(url+'_time_stamp='+(new Date()).getTime());if(data){request.setData(data);request.setMethod('POST');}else{request.setMethod('GET');}
if(headers){for(var i=0;i<headers.length;i++){request.addHeader(headers[i]);}}}else{if(typeof URLGET_PROXY=='undefined'){throw new Error(this+' urlget error: Cross domain request must define URLGET_PROXY first');}
proxy=URLGET_PROXY+(URLGET_PROXY.indexOf('?')<0?'?':'&');request.setURL(proxy+'_time_stamp='+(new Date()).getTime());request.setMethod('POST');var header='';if(headers){header=headers.join('\r\n');header+='\r\n';}
request.setData('url='+encodeURIComponent(url)+'&data='+encodeURIComponent(data)+'&header='+encodeURIComponent(header));}
if(callback&&typeof callback=='function'){var handler=function(response){callback(response,chunnel);}
request.setHandler(handler);request.open(true);return true;}else{return request.open(false);}}})();Function.bind=function(object,method){return function(){method.apply(object,arguments);};}