var pwd = "";

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (pwd != changeImages.arguments[0]) {
		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) {
		
		aboutus_active   = newImage("/images/nav/aboutus_active.gif");
		services_active  = newImage("/images/nav/services_active.gif");
		portfolio_active = newImage("/images/nav/portfolio_active.gif");
		news_active      = newImage("/images/nav/news_active.gif");
		partners_active  = newImage("/images/nav/partners_active.gif");
		resources_active = newImage("/images/nav/resources_active.gif");
		contact_active   = newImage("/images/nav/contact_active.gif");
		preloadFlag = true;
	}
	
	var delim = "";
	var dirtest = document.location.pathname.split('/');
	var delim = dirtest.length > 2 ? '/' : '.';
	var directory = document.location.pathname.split(delim);
	if (dirtest.length == 3) {
		pwd = directory[directory.length-2]
	}
		
	if (dirtest.length == 4) { pwd = directory[directory.length-3] };

	if (document[pwd]) { document[pwd].src = "/images/nav/"+pwd+"_active.gif"; }


}