/* $Id: navigation.js,v 1.4 2003/01/23 08:56:40 mfischer Exp $ */

/* Navigation rollovers */

var aImagesNames = new Array(
	'idee',
	'themenschwerpunkte',
	'veranstaltungskalender',
	'elternuntersich',
	'literaturecke',
	'service'
);
var aImagesOver = new Array(aImagesNames.length);
var aImagesOut  = new Array(aImagesNames.length);
var bImagesLoaded = false;

/* Preload navigation images */
function navigationImagesPreload() {
	var i;
	for (i = 0; i < aImagesNames.length; i++) {
		aImagesOut[i] = new Image();
		aImagesOut[i].src = '/eb/images/skin/v3/navigation/top/' + aImagesNames[i] + '.gif';
		aImagesOver[i] = new Image();
		aImagesOver[i].src = '/eb/images/skin/v3/navigation/top/' + aImagesNames[i] + '_roll.gif';
	}
	bImagesLoaded = true;
}

function navigationMouseOver(num) {
	if (bImagesLoaded) {
		document.images["nav-image-" + num].src = aImagesOver[num].src;
	}
}

function navigationMouseOut(num) {
	if (bImagesLoaded) {
		document.images["nav-image-" + num].src = aImagesOut[num].src;
	}
}