/* namespacing object */
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;


/*--- content loader object for cross-browser requests ---*/
net.ContentLoader=function(url,onload,onerror,method,params,contentType,layerName){
  this.req=null;
  this.onload=onload;
  this.onerror=(onerror) ? onerror : this.defaultError;
  this.loadXMLDoc(url,method,params,contentType);
  this.layerName = layerName;  									/* innerhtml target for onLoad function */
/*   alert('this layerName: ' + this.layerName); */
}

net.ContentLoader.prototype.loadXMLDoc=function(url,method,params,contentType){
  if (!method){
    method="GET";
  }
  if (!contentType && method=="POST"){
    contentType='application/x-www-form-urlencoded';
  }
  if (window.XMLHttpRequest){
    this.req=new XMLHttpRequest();
  } else if (window.ActiveXObject){
  
    this.req=new ActiveXObject("Microsoft.XMLHTTP");
    
  }
  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;
  var ready=req.readyState;
  
  if (ready==net.READY_STATE_COMPLETE){
    var httpStatus=-1;
  	if (req.status) { 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());
}



/*
coded by Kae - http://verens.com/
use this code as you wish, but retain this notice
*/

function XMLHttpRequest2() {

  
	var i=0;
	var url='';
	var responseText='';
	this.onreadystatechange=function(){
		return false;
	}
	this.open=function(method,url){
		//TODO: POST methods
		this.i=++kXHR_instances; // id number of this request
		this.url=url;
		var iframe=document.createElement('<iframe id="kXHR_iframe_'+this.i+'" type="text/plain" style="display:none"></iframe>');
		document.body.appendChild(iframe);
	}
	this.send=function(postdata){
		//TODO: use the postdata
		var el=document.getElementById('kXHR_iframe_'+this.i);
		el.src=this.url;
		kXHR_objs[this.i]=this;
		setTimeout('XMLHttpRequest_checkState('+this.i+')',500);
	}
	return true;
}
function XMLHttpRequest_checkState(inst){
	var el=document.getElementById('kXHR_iframe_'+inst);
	if(el.readyState=='complete'){
		var responseText=window.frames['kXHR_iframe_'+inst].document.body.childNodes[0].data;
		kXHR_objs[inst].responseText=responseText;
		kXHR_objs[inst].readyState=4;
		kXHR_objs[inst].status=200;
		kXHR_objs[inst].onreadystatechange();
		el.parentNode.removeChild(el);
	}else{
		setTimeout('XMLHttpRequest_checkState('+inst+')',500);
	}
}
var kXHR_instances=0;
var kXHR_objs=[];