function get_object(id) 
{
	var object = null;
	if (document.layers) 
	{   
		object = document.layers[id];
	} else if (document.all)
	{
		object = document.all[id];
	}else if (document.getElementById) 
	{
		object = document.getElementById(id);
	}
    return object;
}
var request = false;
if (!request && typeof XMLHttpRequest != 'undefined') {
  request = new XMLHttpRequest();
}
function gotoLedenlijst(url)
{
	request.open("GET", url, true);
	request.onreadystatechange = function()
	{
		if (request.readyState == 4) 
		{
			if (request.status == 200) 
			{
				var response = request.responseText;
				get_object("Ledenlijst").innerHTML = response;
			}
		 }	
	};
	request.send(null);	
}
function gotoMonitorVia(actie,lijstveld)
{
	if(lijstveld.indexOf('a' + get_object("MonitorVia").value + 'a',0) == -1)
	{
		get_object("MonitorViaTekstTR").style.display = "none";
		get_object("MonitorViaTekst").value = '';
	}else
	{
		get_object("MonitorViaTekstTR").style.display = "block";
	}
}