//preload

initImages(["programm1", "images/nav_programm.gif"],
		["programm2", "images/nav_programm_ro.gif"],
		["konzepte1", "images/nav_konzepte.gif"],
		["konzepte2", "images/nav_konzepte_ro.gif"],
		["dl1", "images/nav_dl.gif"],
		["dl2", "images/nav_dl_ro.gif"],
		["kontakt1", "images/nav_kontakt.gif"],
		["kontakt2", "images/nav_kontakt_ro.gif"]);

function initImages()
{
	args_images_II = initImages.arguments;

	for (var i = 0; i < args_images_II.length; i++)
	{
		eval (args_images_II[i][0] + '= new Image();')
		eval (args_images_II[i][0] + '.src = "' + args_images_II[i][1] + '";');
	}
}

function showImages()
{
	args_images_SI = showImages.arguments;
	
	eval ('document.images["' + args_images_SI[0] + '"].src = ' + args_images_SI[1] + '.src;');
}