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_btn_over = newImage("images/home_btn-over.jpg");
		contact_btn_over = newImage("images/contact_btn-over.jpg");
		sitemap_btn_over = newImage("images/sitemap_btn-over.jpg");
		link1_link2_over = newImage("images/link1-link2_over.jpg");
		link1_over = newImage("images/link1-over.jpg");
		link2_link1_over = newImage("images/link2-link1_over.jpg");
		link2_over = newImage("images/link2-over.jpg");
		link3_link1_over = newImage("images/link3-link1_over.jpg");
		link3_over = newImage("images/link3-over.jpg");
		link4_link1_over = newImage("images/link4-link1_over.jpg");
		link4_over = newImage("images/link4-over.jpg");
		link5_link1_over = newImage("images/link5-link1_over.jpg");
		link5_over = newImage("images/link5-over.jpg");
		link6_link1_over = newImage("images/link6-link1_over.jpg");
		link6_over = newImage("images/link6-over.jpg");
		link7_over = newImage("images/link7-over.jpg");
		link7_link1_over = newImage("images/link7-link1_over.jpg");
		c_home_btn_over = newImage("images/c_home_btn-over.jpg");
		c_contact_btn_over = newImage("images/c_contact_btn-over.jpg");
		c_sitemap_btn_over = newImage("images/c_sitemap_btn-over.jpg");
		content_link1_over = newImage("images/content_link1-over.jpg");
		content_link1_content_link2_over = newImage("images/content_link1-content_link2.jpg");
		content_link2_content_link1_over = newImage("images/content_link2-content_link1.jpg");
		content_link2_over = newImage("images/content_link2-over.jpg");
		content_link3_content_link1_over = newImage("images/content_link3-content_link1.jpg");
		content_link3_over = newImage("images/content_link3-over.jpg");
		content_link4_content_link1_over = newImage("images/content_link4-content_link1.jpg");
		content_link4_over = newImage("images/content_link4-over.jpg");
		content_link5_content_link1_over = newImage("images/content_link5-content_link1.jpg");
		content_link5_over = newImage("images/content_link5-over.jpg");
		content_link6_content_link1_over = newImage("images/content_link6-content_link1.jpg");
		content_link6_over = newImage("images/content_link6-over.jpg");
		content_link7_content_link1_over = newImage("images/content_link7-content_link1.jpg");
		content_link7_over = newImage("images/content_link7-over.jpg");
		preloadFlag = true;
	}
}