var Ajax=new Class({Implements:[Events,Options],options:{data:'',url:window.location.href,cdurl:window.location.href,headers:{'X-Requested-With':'XMLHttpRequest','Accept':'text/javascript, text/html, application/xml, text/xml, */*'},async:true,method:'post',urlEncoded:true,charset:'utf-8',isShowLoader:true,onShowLoader:null,onHideLoader:null,onHistory:null},initialize:function(options)
{this.setOptions(options);this.currentHash=null;this.historyInterval=null;this.headers=new Hash(this.options.headers);this.running=false;this.process=0;},send:function(options)
{this.running=true;this.process++;this.showLoader();var type=$type(options);if(type=='string'||type=='element')options={data:options};var old=this.options;options=$extend({data:old.data,url:old.url,method:old.method},options);var data=options.data,url=options.url,method=options.method;if(this.options.urlEncoded&&method=='post')
{var charset=(this.options.charset)?'; charset='+this.options.charset:'';this.headers.set('Content-type','application/x-www-form-urlencoded'+charset);}
if(data&&method=='get')
{url=url+(url.contains('?')?'&':'?')+data;data=null;}
var xhr=new Browser.Request();xhr.open(method.toUpperCase(),url,this.options.async);xhr.onreadystatechange=function()
{if(xhr.readyState!=4)return;if(xhr.status>=200&&xhr.status<300){this.process--;$exec(xhr.responseText);this.fireEvent('complete',xhr);}
else this.fireEvent('failure',xhr);xhr.onreadystatechange=$empty;if(this.process<1){this.running=false;this.process=0;this.hideLoader()}}.bind(this);this.headers.each(function(value,key)
{if(!$try(function(){xhr.setRequestHeader(key,value);return true;}.bind(this)))
this.fireEvent('exception',[key,value]);},this);xhr.send(data);return xhr;},doit:function(func)
{var args=new Array();for(var i=1;i<arguments.length;i++)args[i]=arguments[i];return this.call(func,$(document.body).getFormValues(),args);},call:function(func)
{var params="",i=1,args=arguments;if(arguments.length==2&&typeof(arguments[1])=='object')
{args=arguments[1];i=0;}
params+="ajaxfunc="+encodeURIComponent(func);for(;i<args.length;i++)params+="&ajaxargs[]="+encodeURIComponent(this.encodeObj(args[i]));return this.send(params);},cdcall:function(func)
{var params='',i=1,args=arguments;if(arguments.length==2&&typeof(arguments[1])=='object')
{args=arguments[1];i=0;}
if(this.options.cdurl.charAt(this.options.cdurl.length-1)!='?')params='?';params+="ajaxfunc="+encodeURIComponent(func);for(;i<args.length;i++)params+="&ajaxargs[]="+encodeURIComponent(this.encodeObj(args[i]));document.getElementsByTagName('HEAD')[0].appendChild(new Element('script',{'src':this.options.cdurl+params,'type':'text/javascript'}));return this;},encodeObj:function(param)
{if(typeof(param)=='object')
{var obj="<ajaxarray>";for(i in param)
{if(i=='constructor'||i == '$constructor'||param[i]&&($type(param[i])=='function'||$type(param[i])=='object'))continue;obj+="<k>"+i+"</k><v>"+this.encodeObj(param[i])+"</v>";}
obj+="</ajaxarray>";return obj;}
return param;},submit:function(func,form,target,url)
{form=$(form);var old_target=form.target;var old_action=form.action;var old_method=form.method;var old_enctype=form.encoding;url=(url)?url:this.options.url;form.action=url.replace('#','')+(url.contains('?')?'&':'?')+"ajaxfunc="+encodeURIComponent(func)+"&ajaxsubmit=1&ajaxargs[]="+encodeURIComponent(this.encodeObj(target.substr(6)));form.method='post';form.target=target;form.encoding='multipart/form-data';form.submit();form.target=old_target;form.action=old_action;form.method=old_method;form.encoding=old_enctype;},submitProgress:function(func,form,target,callback,url)
{this.isShowLoader=false;this.submit(func,form,target,url);setTimeout(function(){this.progress(target.substr(6),callback);}.bind(this),500);},progress:function(id,callback)
{this.doit(callback,$('ajax_progress_key_'+id).value,id);},showLoader:function()
{if(this.options.isShowLoader)
{if(document.body)document.body.style.cursor='wait';this.fireEvent('loaderShow');}},hideLoader:function()
{if(this.options.isShowLoader)
{if(document.body)document.body.style.cursor='default';this.fireEvent('loaderHide');}},startHistory:function()
{this.currentHash=window.location.hash;if(window.ie)
{var el=new Element('iframe',{'styles':{'display':'none'},'id':'ajax_historyFrame'});el.inject(document.body,'top');var iframe=$('ajax_historyFrame').contentWindow.document;iframe.open();iframe.close();iframe.location.hash=this.currentHash;if(!this.currentHash)this.currentHash='#';}
this.historyInterval=setInterval(this.history,100);},addHistory:function(hash)
{if(window.ie)
{var iframe=$('ajax_historyFrame').contentWindow.document;iframe.open();iframe.close();iframe.location.hash=hash;}
window.location.hash=hash;},stopHistory:function()
{clearInterval(this.historyInterval);this.currentHash=null;this.historyInterval=null;},history:function()
{var hash;if(window.ie)hash=$('ajax_historyFrame').contentWindow.document.location.hash;else hash=window.location.hash;if(this.currentHash!=hash)
{this.currentHash=hash;if(window.ie)window.location.hash=hash;this.fireEvent('history',this.currentHash.substr(1));}}});