function XHR( target, handlerfunc )
{
	var request 		= getRequest();			// XmlHttpRequest holder
	var url				= target;				// target of the request
	var handler			= handlerfunc;			// function to call on return - sent one parameter, success or failure
	
	// return the request responseXML
	this.getXML			= function () { return request.responseXML; };
	
	// return the request responseText
	this.getText		= function () { return request.responseText; };
	
	// return the request status
	this.getStatus		= function () { return request.status; };
	
	// return the request status text
	this.getStatusText	= function () { return request.statusText; };
	
	// return the request readystate - returns -1 if XMLHttpRequest not available
	this.getReadyState	= function () { return request === null ? -1 : request.readyState; };

	// send a request via post
	this.send 			= function ( strargs )
	{
		if ( request === null ) { handler( false ); return; }	
		document.body.style.cursor = "progress";
		request.open("POST", url, true);
		request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		request.onreadystatechange = callHandler;
		request.send( strargs );
	};
	
	// convert a javascript object into an argument string
	this.datajoin	= function ( objargs )
	{
		var arr = [];
		
		for ( key in objargs )
		{
			arr.push( key + "=" + objargs[key] );
		}
		
		return arr.join( "&" );
	}
	
	function callHandler()
	{
		if ( request.readyState === 4 || request.readyState === "complete" ) 
		{
			document.body.style.cursor = "auto";
			handler( request.status === 200 || request.status === 0 );
		}
	}
	
	function getRequest()
	{
		try { return new XMLHttpRequest(); 						} catch( e ) {} // Firefox, Opera 8.0+, Safari, IE7
		try	{ return new ActiveXObject("MSXML2.XMLHTTP.6.0"); 	} catch( e ) {}	// Preferred ActiveX version
		try	{ return new ActiveXObject("MSXML2.XMLHTTP.3.0"); 	} catch( e ) {}	// Second choice ActiveX version
		try	{ return new ActiveXObject("Msxml2.XMLHTTP"); 		} catch( e ) {}	// Third choice ActiveX version
		try	{ return new ActiveXObject("Microsoft.XMLHTTP"); 	} catch( e ) {}	// IE5.5 on Win98?
  		return null;															// Failure
	}
	
	return request === null;
}