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) {
		preloadImagesFooter();
		preloadImagesHeader();
		preloadImagesNavigation();
		preloadFlag = true;
	}
}
function preloadImagesFooter() {
	footer_logo_over = newImage("_resource/system/images/footer/logo/over.gif");
}
function preloadImagesHeader() {
	header_logo_over = newImage("_resource/system/images/header/logo/over.gif");
}
function preloadImagesNavigation() {
	navigation_boards_over = newImage("_resource/system/images/navigation/boards/over.gif");
	navigation_boards_down = newImage("_resource/system/images/navigation/boards/down.gif");
	navigation_weblog_over = newImage("_resource/system/images/navigation/weblog/over.gif");
	navigation_weblog_down = newImage("_resource/system/images/navigation/weblog/down.gif");
	navigation_networks_over = newImage("_resource/system/images/navigation/networks/over.gif");
	navigation_networks_down = newImage("_resource/system/images/navigation/networks/down.gif");
	navigation_customerCentric_over = newImage("_resource/system/images/navigation/customerCentric/over.gif");
	navigation_customerCentric_down = newImage("_resource/system/images/navigation/customerCentric/down.gif");
	navigation_solutionSelling_over = newImage("_resource/system/images/navigation/solutionSelling/over.gif");
	navigation_solutionSelling_down = newImage("_resource/system/images/navigation/solutionSelling/down.gif");
	navigation_articles_over = newImage("_resource/system/images/navigation/articles/over.gif");
	navigation_articles_down = newImage("_resource/system/images/navigation/articles/down.gif");
	navigation_testimonials_over = newImage("_resource/system/images/navigation/testimonials/over.gif");
	navigation_testimonials_down = newImage("_resource/system/images/navigation/testimonials/down.gif");
	navigation_speaking_over = newImage("_resource/system/images/navigation/speaking/over.gif");
	navigation_speaking_down = newImage("_resource/system/images/navigation/speaking/down.gif");
}
preloadImages();