browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )));

//browser4 = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 4 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )));

var navpage = "";
//if (page == "") navpage = "../";

var load = 0;

if (browser) {
	nav_1on = new Image();
	nav_1on.src = navpage + "_media/home-over.gif";
	nav_1off = new Image();
	nav_1off.src = navpage + "_media/home.gif";
	nav_2on = new Image();
	nav_2on.src = navpage + "_media/newsletter-over.gif";
	nav_2off = new Image();
	nav_2off.src = navpage + "_media/newsletter.gif";
	nav_3on = new Image();
	nav_3on.src = navpage + "_media/grants-over.gif";
	nav_3off = new Image();
	nav_3off.src = navpage + "_media/grants.gif";
	nav_4on = new Image();
	nav_4on.src = navpage + "_media/people-over.gif";
	nav_4off = new Image();
	nav_4off.src = navpage + "_media/people.gif";
	nav_5on = new Image();
	nav_5on.src = navpage + "_media/contact-over.gif";
	nav_5off = new Image();
	nav_5off.src = navpage + "_media/contact.gif";
}


function img_act(imgName) {
	if (browser && load==1) {
		imgOn = eval(imgName + "on.src");
		document [imgName].src = imgOn;
	}
}


function img_inact(imgName) {
	if (browser && load==1) {
		imgOff = eval(imgName + "off.src");
		document [imgName].src = imgOff;
	}
}

function set_load() {
	if (browser) {
		load=1;
	}
}