function preloadImages() {
	if (document.images) {
		index_text_de_over = newImage("frontend/gfx/layout/index/index_text_de-over.gif");
		index_pfeil_de_over = newImage("frontend/gfx/layout/index/index_pfeil_de-over.gif");
		index_text_en_over = newImage("frontend/gfx/layout/index/index_text_en-over.gif");
		index_pfeil_en_over = newImage("frontend/gfx/layout/index/index_pfeil_en-over.gif");
		preloadFlag = true;
	}
}