var dyn = (document.all || document.layers || document.getElementById) ? true : false;

var ie = (navigator.appName.indexOf('Microsoft') != -1) ? true : false;
var ie4 = (ie && document.all && !document.getElementById) ? true : false;
var ie5 = (ie && document.getElementById && navigator.userAgent.indexOf('MSIE 6.0') == -1) ? true : false;
var ie6 = (ie && document.getElementById && !ie5) ? true : false;
var ie4Min = (ie4 || ie5 || ie6) ? true : false;
var ie5Min = (ie5 || ie6) ? true : false;
var ie6Min = ie6;

var ns = (navigator.appName.indexOf('Netscape') != -1) ? true : false;
var ns4 = (ns && document.layers) ? true : false;
var ns6 = (ns && document.getElementById) ? true : false;
var ns4Min = (ns4 || ns6) ? true : false;
var ns6Min = ns6;


function preloadNavBar() {

}

function updateCounter(obj, action, max) {
	var obj = MM_findObj(obj);
	if ( isNaN(obj.value) ) {
		     obj.value = 0;
      }
	if ( action == 'up' ) {
		 if ( !max || obj.value < max  ) {
		       obj.value++;
		 }
	}
	if (action == 'down') {
		obj.value = obj.value == 0 ? 0 : obj.value - 1;
	}
}

var bln_confirm = false;

function confirmExit(newUrl) {
	if ( bln_confirm ) {
		if ( confirm('Als u nu naar een andere pagina gaat, worden uw profielgegevens niet opgeslagen.\n\nWeet u zeker dat u deze pagina wilt verlaten?') ) {
			document.location = newUrl;
		}
	}
	else {
		document.location = newUrl;
	}
}
       
function submitAsButton(name, showNoKlik, refresh) {
	if ( showNoKlik != false) {
		var noKlik = MM_findObj('noKlik');
		noKlik.style.display = 'block';
		noKlik.style.height = getDocHeight();
		noKlik.style.width = getDocWidth();
	}
	if ( refresh != false) {
		var ev = MM_findObj('event');
		ev.value = name;
	}
	var o = MM_findObj(name);
	o.checked = true;
	document.Scherm_A_Home.submit();
}

function getDocHeight() {
	if (ie4Min ) return (document.body.scrollHeight > document.body.clientHeight) ? document.body.scrollHeight : document.body.clientHeight;
	else if (ns4Min) return document.documentElement.offsetHeight ;
}

function getDocWidth() {
	if (ie4Min) return (document.body.scrollWidth > document.body.clientWidth) ? document.body.scrollWidth : document.body.clientWidth;
	else if (ns4Min) return document.documentElement.offsetWidth;
}

function setValue( field_name, field_value ){
	var field = MM_findObj( field_name );
	field.value = field_value;
}

function datum(jaar, maand, dag) {
	strJaar = new String(jaar);
	//if ( strJaar.length == 4 ) jaar = strJaar.substr(2,2);
	var _datum = '';
	if ( dag < 10 ) _datum += '0';
	_datum += dag + '-';
      
	if (maand < 10 ) _datum += '0';

	_datum += maand + '-';
	_datum += jaar + '';
	return _datum;
}