Ext.data.Connection=function(a){Ext.apply(this,a);this.addEvents("beforerequest","requestcomplete","requestexception");Ext.data.Connection.superclass.constructor.call(this)};Ext.extend(Ext.data.Connection,Ext.util.Observable,{timeout:30000,autoAbort:false,disableCaching:true,disableCachingParam:"_dc",request:function(e){if(this.fireEvent("beforerequest",this,e)!==false){var c=e.params;if(typeof c=="function"){c=c.call(e.scope||window,e)}if(typeof c=="object"){c=Ext.urlEncode(c)}if(this.extraParams){var h=Ext.urlEncode(this.extraParams);c=c?(c+"&"+h):h}var b=e.url||this.url;if(typeof b=="function"){b=b.call(e.scope||window,e)}if(e.form){var d=Ext.getDom(e.form);b=b||d.action;var k=d.getAttribute("enctype");if(e.isUpload||(k&&k.toLowerCase()=="multipart/form-data")){return this.doFormUpload(e,c,b)}var j=Ext.lib.Ajax.serializeForm(d);c=c?(c+"&"+j):j}var l=e.headers;if(this.defaultHeaders){l=Ext.apply(l||{},this.defaultHeaders);if(!e.headers){e.headers=l}}var g={success:this.handleResponse,failure:this.handleFailure,scope:this,argument:{options:e},timeout:e.timeout||this.timeout};var a=e.method||this.method||((c||e.xmlData||e.jsonData)?"POST":"GET");if(a=="GET"&&(this.disableCaching&&e.disableCaching!==false)||e.disableCaching===true){var i=e.disableCachingParam||this.disableCachingParam;b+=(b.indexOf("?")!=-1?"&":"?")+i+"="+(new Date().getTime())}if(typeof e.autoAbort=="boolean"){if(e.autoAbort){this.abort()}}else{if(this.autoAbort!==false){this.abort()}}if((a=="GET"||e.xmlData||e.jsonData)&&c){b+=(b.indexOf("?")!=-1?"&":"?")+c;c=""}this.transId=Ext.lib.Ajax.request(a,b,g,c,e);return this.transId}else{Ext.callback(e.callback,e.scope,[e,null,null]);return null}},isLoading:function(a){if(a){return Ext.lib.Ajax.isCallInProgress(a)}else{return this.transId?true:false}},abort:function(a){if(a||this.isLoading()){Ext.lib.Ajax.abort(a||this.transId)}},handleResponse:function(a){this.transId=false;var b=a.argument.options;a.argument=b?b.argument:null;this.fireEvent("requestcomplete",this,a,b);Ext.callback(b.success,b.scope,[a,b]);Ext.callback(b.callback,b.scope,[b,true,a])},handleFailure:function(a,c){this.transId=false;var b=a.argument.options;a.argument=b?b.argument:null;this.fireEvent("requestexception",this,a,b,c);Ext.callback(b.failure,b.scope,[a,b]);Ext.callback(b.callback,b.scope,[b,false,a])},doFormUpload:function(e,a,b){var c=Ext.id();var f=document.createElement("iframe");f.id=c;f.name=c;f.className="x-hidden";if(Ext.isIE){f.src=Ext.SSL_SECURE_URL}document.body.appendChild(f);if(Ext.isIE){document.frames[c].name=c}var d=Ext.getDom(e.form);d.target=c;d.method="POST";d.enctype=d.encoding="multipart/form-data";if(b){d.action=b}var n,l;if(a){n=[];a=Ext.urlDecode(a,false);for(var h in a){if(a.hasOwnProperty(h)){l=document.createElement("input");l.type="hidden";l.name=h;l.value=a[h];d.appendChild(l);n.push(l)}}}function g(){var i={responseText:"",responseXML:null};i.argument=e?e.argument:null;try{var o;if(Ext.isIE){o=f.contentWindow.document}else{o=(f.contentDocument||window.frames[c].document)}if(o&&o.body){i.responseText=o.body.innerHTML}if(o&&o.XMLDocument){i.responseXML=o.XMLDocument}else{i.responseXML=o}}catch(k){}Ext.EventManager.removeListener(f,"load",g,this);this.fireEvent("requestcomplete",this,i,e);Ext.callback(e.success,e.scope,[i,e]);Ext.callback(e.callback,e.scope,[e,true,i]);setTimeout(function(){Ext.removeNode(f)},100)}Ext.EventManager.on(f,"load",g,this);d.submit();if(n){for(var j=0,m=n.length;j<m;j++){Ext.removeNode(n[j])}}}});Ext.Ajax=new Ext.data.Connection({autoAbort:false,serializeForm:function(a){return Ext.lib.Ajax.serializeForm(a)}});