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) {
		home_over = newImage("images/home-over.gif");
		blognav_over = newImage("images/blog-over.gif");
		abff_over = newImage("images/nav/about-freefall-hover.png");
		currprojects_over = newImage("images/nav/current-projects-hover.png");
		pergallery_over = newImage("images/nav/performance-gallery-hover.png");
		linksnav_over = newImage("images/nav/links-hover.png");
		blog_over = newImage("images/nav/blog-hover.png");
		portraitproject_over = newImage("images/nav/portrait-project-hover.png");
		press_over = newImage("images/nav/press-hover.png");
		workshops_over = newImage("images/nav/workshops-hover.png");
		contact__over = newImage("images/nav/donate-contact-us-hover.png");
		aboutff_over = newImage("images/nav/about-freefall-hover.png");
		currproj_over = newImage("images/nav/current-projects-hover.png");
		gall_over = newImage("images/gall-over.gif");
		blueblog_over = newImage("images/blue-blog-over.png");
		preloadFlag = true;
	}
}