function create_http_object() 
{ 
	var ActiveXTypes = [ 
		"Microsoft.XMLHTTP", 
		"MSXML2.XMLHTTP.5.0", 
		"MSXML2.XMLHTTP.4.0", 
		"MSXML2.XMLHTTP.3.0", 
		"MSXML2.XMLHTTP" 
	]; 

	for( var i = 0; i < ActiveXTypes.length; i++ ) 
	{ 
		try 
		{ 
			return new ActiveXObject( ActiveXTypes[i] ); 
		} 
		catch( e ) 
		{ } 
	} 

	try 
	{ 
		return new XMLHttpRequest(); 
	} 
	catch( e ) 
	{ } 

	return false; 
} 	
function make_request(url, callback_function, http_method, post_values, return_xml) 
{ 
	http = create_http_object(); 
	if(!http) 
	{ 
		alert('Je browser ondersteunt deze feature niet.'); 
		return false; 
	} 
	http.onreadystatechange = function() 
	{ 
		if(http.readyState == 4) 
		{ 
			if(http.status == 200) 
			{ 
				if(callback_function) 
				{ 
					if(return_xml) 
					{ 
						eval(callback_function + '(http.responseXML)'); 
					} 
					else 
					{ 
						eval(callback_function + '(http.responseText)'); 
					} 
				} 
			} 
			else 
			{ 
				actief();

			} 
		} 
	} 

	if(!post_values) 
	{ 
		post_values = null; 
	} 
	if(!http_method) 
	{ 
		http_method = "GET"; 
	} 
	http.open(http_method, url, true);
	if(http_method == "POST") 
	{ 
		http.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); 
	} 

	
	http.send(post_values); 
} 

function actief() 
{  
	make_request('/actief.php', 'actiever', 'GET', 'test=ok', false);
}
function actiever(tekst)
{
	//document.getElementById('test').innerHTML = tekst; 
	forumTimer = setTimeout('actief()',100000);
}