function hideAllSubmenus() {
	/*
	var o = document.getElementById('submenuProducten');
	if (o != undefined) {
		o.style.display = 'none';
		document.getElementById('producten').style.backgroundImage =  'url('+imgPath+'topmenu_producten.gif)';

	}
	var o = document.getElementById('submenuOverBional');
	if (o != undefined) {
		o.style.display = 'none';
		document.getElementById('overBional').style.backgroundImage =  'url('+imgPath+'topmenu_over_bional.gif)';
	}
	*/
}

/*
* id = id of div to show
* aTag = a-tag to make active
*/
function showSubmenu(id) {
	if (id == '1') {
		document.getElementById('submenuProducten').style.display = 'block';
		document.getElementById('producten').style.backgroundImage =  'url('+imgPath+'topmenu_producten_active.gif)';
	}
	if (id == '4') {
		document.getElementById('submenuOverBional').style.display = 'block';
		document.getElementById('overBional').style.backgroundImage =  'url('+imgPath+'topmenu_over_bional_active.gif)';
	}
}

function setBackground(obj, img) {
	obj.style.backgroundImage = 'url('+imgPath+'topmenu_producten_active.gif)';
}