arrNav = new Array(
"/shared/images/nav_about_over.gif",
"/shared/images/nav_services_over.gif",
"/shared/images/nav_cases_over.gif",
"/shared/images/nav_news_over.gif",
"/shared/images/nav_contact_over.gif");

ctr = 0;
while(ctr < arrNav.length) {
	nVar = "n"+ctr;
	nVar = new Image();
	nVar.src = arrNav[ctr];
	ctr++;
	}

function navover(img) {
	imgOver = "/shared/images/nav_"+img+"_over.gif";
	document.images[img].src = imgOver;
	}
	
function navout(img) {
	imgOut = "/shared/images/nav_"+img+".gif";
	document.images[img].src = imgOut;
	}