var isIE=window.ActiveXObject;

var net=new Object();

net.READY_STATE_UNINITIALIZED=0;
net.READY_STATE_LOADING=1;
net.READY_STATE_LOADED=2;
net.READY_STATE_INTERACTIVE=3;
net.READY_STATE_COMPLETE=4;

net.ContentLoader=function(url,onload,onerror,onupdate,method,params,contentType){
	this.req=null;
	this.onload=onload;
	this.onerror=(onerror?onerror:this.defaultError);
	this.onupdate=onupdate;
	this.loadXMLDoc(url,method,params,contentType);
}

net.ContentLoader.prototype.loadXMLDoc=function(url,method,params,contentType){
	if(!method){method="GET";}
	if(!contentType&&method=="POST"){contentType='application/x-www-form-urlencoded; charset=utf-8;';}
	if(!tf.isInSF()&&window.XMLHttpRequest&&(!isIE||url.indexOf('file:')==-1)){this.req=new XMLHttpRequest();}
	else if(window.ActiveXObject){
		try{this.req=new ActiveXObject("Microsoft.XMLHTTP");}
		catch(e){this.req=null;}
	}
	if(this.req){
		try{
			var loader=this;
			this.req.onreadystatechange=function(){net.ContentLoader.onReadyState.call(loader);}
			this.req.open(method,url,true);
			if(contentType){this.req.setRequestHeader('Content-Type', contentType);}
			this.req.send(params);
		}
		catch(err){this.onerror.call(this);}
	}
}
net.ContentLoader.onReadyState=function(){
	var req=this.req,ready=req.readyState;
	if(ready==net.READY_STATE_COMPLETE){
		var httpStatus=req.status;
		if(httpStatus==200||httpStatus==0){this.onload.call(this);}
		else{this.onerror.call(this);}
	}
}
net.ContentLoader.prototype.defaultError=function(){
	alert("error fetching data!"+"\n\nreadyState:"+this.req.readyState
		+"\nstatus: "+this.req.status+"\nheaders: "+this.req.getAllResponseHeaders());
}

net.cmdQueues=[];
net.CommandQueue=function(id,url,data,freq,immediate,onLoad,onError,onUpdate){
	this.id=id;
	this.url=url;
	this.data=data;
	this.onLoad=(onLoad?onLoad:net.CommandQueue.onload);
	this.onError=(onError?onError:net.CommandQueue.onerror);
	this.onUpdate=(onUpdate?onUpdate:net.CommandQueue.onupdate);
	this.lastUpdateTime=0;
	if(immediate)this.fireRequest();
	if(freq)this.repeat(freq);
	net.cmdQueues[id]=this;
}
net.CommandQueue.prototype.fireRequest=function(){
	if(!this.onUpdate){return;}
	this.loader=new net.ContentLoader(this.url,this.onLoad,this.onError,this.onUpdate,"POST",this.data);
}
net.CommandQueue.onload=function(loader){
	var jsonText=this.req.responseText;
	var o=tf.sfJSON.parse(jsonText);
	if(o){this.onupdate.call(this,o);}
}
net.CommandQueue.prototype.repeat=function(freq){
	this.unrepeat();
	if (freq>0){
		this.freq=freq;
		var cmd="net.cmdQueues['"+this.id+"'].fireRequest()";
		this.repeater=setInterval(cmd,freq*1000);
	}
}

net.CommandQueue.prototype.unrepeat=function(){
	if (this.repeater){clearInterval(this.repeater);}
	this.repeater=null;
}

// $Revision: 1786 $
// $HeadURL: svn://3d3-p432/ShopFactory/trunk/bin/Common%20Files/copy/sec.js $