function newImage(arg)
	{
	if (document.images)
		{
		rslt = new Image();
		rslt.src = arg;
		return rslt;
		}
	}

var preloadFlag = false;
function preloadImages()
	{
	if (document.images)
		{
		nav01_over = newImage('/images/nav01-over.gif');
		nav01_nav02_over = newImage('/images/nav01-nav02-over.gif');
		nav02_over = newImage('/images/nav02-over.gif');
		nav02_nav03_over = newImage('/images/nav02-nav03-over.gif');
		nav03_over = newImage('/images/nav03-over.gif');
		nav05_over = newImage('/images/nav05-over.gif');
		nav05_nav06_over = newImage('/images/nav05-nav06-over.gif');
		nav06_over = newImage('/images/nav06-over.gif');
		nav06_nav07_over = newImage('/images/nav06-nav07-over.gif');
		nav07_over = newImage('/images/nav07-over.gif');
		nav07_nav08_over = newImage('/images/nav07-nav08-over.gif');
		nav08_over = newImage('/images/nav08-over.gif');
		nav08_nav09_over = newImage('/images/nav08-nav09-over.gif');
		nav09_over = newImage('/images/nav09-over.gif');
		nav09_nav10_over = newImage('/images/nav09-nav10-over.gif');
		nav10_over = newImage('/images/nav10-over.gif');
		nav12_nav13_over = newImage('/images/nav12-nav13-over.gif');
		nav12_over = newImage('/images/nav12-over.gif');
		nav13_nav15_over = newImage('/images/nav13-nav15-over.gif');
		nav13_over = newImage('/images/nav13-over.gif');
		nav15_nav16_over = newImage('/images/nav15-nav16-over.gif');
		nav15_over = newImage('/images/nav15-over.gif');
		nav16_over = newImage('/images/nav16-over.gif');
		nav18_over = newImage('/images/nav18-over.gif');
		nav18_nav19_over = newImage('/images/nav18-nav19-over.gif');
		nav19_over = newImage('/images/nav19-over.gif');
		baud_over = newImage('/images/baud-over.jpg');
		baud_text_over = newImage('/images/baud-text.gif');
		diehl_over = newImage('/images/diehl-over.jpg');
		diehl_text_over = newImage('/images/diehl-text.gif');
		schudel_over = newImage('/images/schudel-over.jpg');
		schudel_text_over = newImage('/images/schudel-text.gif');
		stauffer_over = newImage('/images/stauffer-over.jpg');
		stauffer_text_over = newImage('/images/stauffer-text.gif');
		suter_over = newImage('/images/suter-over.jpg');
		suter_text_over = newImage('/images/suter-text.gif');
		zumbrunn_over = newImage('/images/zumbrunn-over.jpg');
		zumbrunn_text_over = newImage('/images/zumbrunn-text.gif');
		preloadFlag = true;
		}
	}

function changeImages()
	{
	if (document.images && (preloadFlag == true))
		{
		for (var i=0; i<changeImages.arguments.length; i+=2)
			{
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
			}
		}
	}