function myToggleClass(fieldId, fieldClass) {
	document.getElementById(fieldId).className = fieldClass;
}

function toggle(obj) {
	var el = document.getElementById(obj);
	if (el.style.display != 'none') {
		el.style.display = 'none';
	} else {
		el.style.display = '';
	}
}

function imposeMaxLength(Object, MaxLen) {
	var iCharLength = Object.value.length;
	var iRemainChars = MaxLen - iCharLength;
	var oChars = document.getElementById(Object.name + '_chars');
	if (oChars) {
		oChars.innerHTML = ((iRemainChars < 0) ? 0 : iRemainChars);
	}

	if (iRemainChars <= 0) {
		Object.value = Object.value.substr(0, MaxLen);
	}
	return true;
}

function submitForm(id) {
	if (id == 'searchForm') {
		if (document.getElementById('query').value == 'Uw zoekopdracht') {
			document.getElementById('query').value = '';
		}
	}
	document.forms[id].submit();
}

function printwindow(mypage, myname, w, h) {
	LeftPosition = (screen.width) ? (screen.width - w) / 2 : 100;
	TopPosition = (screen.height) ? (screen.height - h) / 2 : 100;
	settings = 'width='
			+ w
			+ ',height='
			+ h
			+ ',top='
			+ TopPosition
			+ ',left='
			+ LeftPosition
			+ ',scrollbars=yes,location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=yes';
	win = window.open(mypage, myname, settings);
}

function updateDatePullDownMenu(objForm, fieldName) {
	var pdmDays = fieldName + "_days";
	var pdmMonths = fieldName + "_months";
	var pdmYears = fieldName + "_years";

	time = new Date(
			objForm[pdmYears].options[objForm[pdmYears].selectedIndex].text,
			objForm[pdmMonths].options[objForm[pdmMonths].selectedIndex].value,
			1);

	time = new Date(time - 86400000);

	var selectedDay = objForm[pdmDays].options[objForm[pdmDays].selectedIndex].text;
	var daysInMonth = time.getDate();

	for ( var i = 0; i < objForm[pdmDays].length; i++) {
		objForm[pdmDays].options[0] = null;
	}

	for ( var i = 0; i < daysInMonth; i++) {
		objForm[pdmDays].options[i] = new Option(i + 1);
	}

	if (selectedDay <= daysInMonth) {
		objForm[pdmDays].options[selectedDay - 1].selected = true;
	} else {
		objForm[pdmDays].options[daysInMonth - 1].selected = true;
	}
}

// BOOKMARK FUNCTION
function addToFavorites(obj, url, title) {
	if (window.sidebar) { // Mozilla Firefox Bookmark
		window.sidebar.addPanel(title, url, "");
	} else if (window.external) { // IE Favorite
		window.external.AddFavorite(url, title);
	} else if (window.opera && window.print) {
		// Opera Hotlist
		obj.setAttribute('href', url);
		obj.setAttribute('title', title);
		obj.setAttribute('rel', 'sidebar');
		obj.click();
	}
	return false;
}