// preload images
var img001 = new Image();
img001.src = 'common/menu_fahrstunden.png';
var img002 = new Image();
img002.src = 'common/menu_lernfahrausweis.png';
var img003 = new Image();
img003.src = 'common/menu_theorie.png';
var img004 = new Image();
img004.src = 'common/menu_nothelferkurs.png';
var img005 = new Image();
img005.src = 'common/menu_vku.png';
var img006 = new Image();
img006.src = 'common/menu_kontakt.png';

function mi(name) {
	if (name)
		document.getElementById('menuImage').src = 'common/menu_' + name + '.png';
	else
		document.getElementById('menuImage').src = 'common/logo.png';
}