if (document.images) {
	overs = new Array();
	
	// home images
	overs["hat"] = new Image();
	overs["hat"].src = "images/home_hat_on.gif";
	overs["learn"] = new Image();
	overs["learn"].src = "images/home_learnmore_on.gif";
	
	// primary nav
	overs["sol"] = new Image();
	overs["sol"].src = "images/nav_solutions_on.gif";
	overs["app"] = new Image();
	overs["app"].src = "images/nav_applications_on.gif";
	overs["cas"] = new Image();
	overs["cas"].src = "images/nav_casestudies_on.gif";
	overs["com"] = new Image();
	overs["com"].src = "images/nav_company_on.gif";
	overs["pub"] = new Image();
	overs["pub"].src = "images/nav_publications_on.gif";
	overs["cus"] = new Image();
	overs["cus"].src = "images/nav_customers_on.gif";
	overs["par"] = new Image();
	overs["par"].src = "images/nav_partners_on.gif";
	overs["new"] = new Image();
	overs["new"].src = "images/nav_news_on.gif";

	// footer nav
	overs["con"] = new Image();
	overs["con"].src = "images/footer_contact_on.jpg";
	overs["sit"] = new Image();
	overs["sit"].src = "images/footer_sitemap_on.jpg";
}

function imgOver(img) {
	if (document.getElementById) {
		document.getElementById(img).orig = document.getElementById(img).src;
		document.getElementById(img).src = overs[img].src;
	}
}

function imgOff(img) {
	if (document.getElementById) {
		document.getElementById(img).src = document.getElementById(img).orig;
	}
}

function homeOver(id) {
	if (document.getElementById) {
		var hat = document.getElementById("hat" + id);
		var learn = document.getElementById("learn" + id);
		hat.orig = hat.src;
		hat.src = overs["hat"].src;
		learn.orig = learn.src;
		learn.src = overs["learn"].src;
	}	
}

function homeOut(id) {
	if (document.getElementById) {
		var hat = document.getElementById("hat" + id);
		var learn = document.getElementById("learn" + id);
		hat.src = hat.orig;
		learn.src = learn.orig;
	}	
}