function preload() {
	document.preloaded_imgs = new Array();
	if (document.images) {
		document.preloaded_imgs[0] = preload_img('gfx/buttons/btn_aktionen_over.gif');
		document.preloaded_imgs[1] = preload_img('gfx/buttons/btn_anfahrt_over.gif');
		document.preloaded_imgs[2] = preload_img('gfx/buttons/btn_drinks_over.gif');
		document.preloaded_imgs[3] = preload_img('gfx/buttons/btn_bilder_over.gif');
		document.preloaded_imgs[4] = preload_img('gfx/buttons/btn_gaestebuch_over.gif');
		document.preloaded_imgs[5] = preload_img('gfx/buttons/btn_about_us_over.gif');		
		document.preloaded_imgs[6] = preload_img('gfx/buttons/btn_kontakt_over.gif');
		
		// document.preloaded_imgs[7] = preload_img('gfx/buttons/btn_aktionen_over.gif');
		document.preloaded_imgs[8] = preload_img('gfx/buttons/btn_fr_anfahrt_over.gif');
		// document.preloaded_imgs[9] = preload_img('gfx/buttons/btn_drinks_over.gif');
		// document.preloaded_imgs[10] = preload_img('gfx/buttons/btn_bilder_over.gif');
		document.preloaded_imgs[11] = preload_img('gfx/buttons/btn_fr_gaestebuch_over.gif');
		// document.preloaded_imgs[12] = preload_img('gfx/buttons/btn_about_us_over.gif');		
		// document.preloaded_imgs[13] = preload_img('gfx/buttons/btn_kontakt_over.gif');
		
		document.preloaded_imgs[14] = preload_img('gfx/buttons/btn_aktionen_sel.gif');
		document.preloaded_imgs[15] = preload_img('gfx/buttons/btn_anfahrt_sel.gif');
		document.preloaded_imgs[16] = preload_img('gfx/buttons/btn_drinks_sel.gif');
		document.preloaded_imgs[17] = preload_img('gfx/buttons/btn_bilder_sel.gif');
		document.preloaded_imgs[18] = preload_img('gfx/buttons/btn_gaestebuch_sel.gif');
		document.preloaded_imgs[19] = preload_img('gfx/buttons/btn_about_us_sel.gif');		
		document.preloaded_imgs[20] = preload_img('gfx/buttons/btn_kontakt_sel.gif');
	}
}

function preload_img(url) {
	img = new Image();
	img.src = url;
	return img;
}