// JavaScript Document
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) {
		nav_home_over = newImage("images/nav_home-over.gif");
		nav_home_blue = newImage("images/nav_home-blue.gif");
		nav_company_over = newImage("images/nav_company-over.gif");
		nav_company_blue = newImage("images/nav_company-blue.gif");
		nav_services_over = newImage("images/nav_services-over.gif");
		nav_services_blue = newImage("images/nav_services-blue.gif");
		nav_news_over = newImage("images/nav_news-over.gif");
		nav_news_blue = newImage("images/nav_news-blue.gif");
		nav_jobs_over = newImage("images/nav_jobs-over.gif");
		nav_jobs_blue = newImage("images/nav_jobs-blue.gif");
		nav_photos_over = newImage("images/nav_photos-over.gif");
		nav_photos_blue = newImage("images/nav_photos-blue.gif");
		nav_contact_blue = newImage("images/nav_contact-blue.gif");
		nav_contact_over = newImage("images/nav_contact-over.gif");
		preloadFlag = true;
	}
}