// Home Rollovers

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

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];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		index_02_index_04_over = newImage("images/index_02-index_04_over.jpg");
		index_02_index_03_over = newImage("images/index_02-index_03_over.jpg");
		index_02_index_06_over = newImage("images/index_02-index_06_over.jpg");
		index_02_index_07_over = newImage("images/index_02-index_07_over.jpg");
		philosophy_02_philosophy_03_over = newImage("images/philosophy_02-philosophy_03.jpg");
		philosophy_03_over = newImage("images/philosophy_03-over.jpg");
		philosophy_04_over = newImage("images/philosophy_04-over.jpg");
		philosophy_05_over = newImage("images/philosophy_05-over.jpg");
		philosophy_06_over = newImage("images/philosophy_06-over.jpg");
		philosophy_07_over = newImage("images/philosophy_07-over.jpg");
		philosophy_08_over = newImage("images/philosophy_08-over.jpg");
		philosophy_09_over = newImage("images/philosophy_09-over.jpg");
		philosophy_10_over = newImage("images/philosophy_10-over.jpg");
		philosophy_12_philosophy_03_over = newImage("images/philosophy_12-philosophy_03.jpg");
		philosophy_13_philosophy_03_over = newImage("images/philosophy_13-philosophy_03.jpg");
		histacq_nav_over = newImage("images/histacq_nav_over.jpg");
		invcrit_nav_over = newImage("images/invcrit_nav_over.jpg");
		portcomp_nav_over = newImage("images/portcomp_nav_over.jpg");
		preloadFlag = true;
	}
}