var js_ok = false;
js_but = new Array();

if ( navigator.appName.substring(0,9) == "Microsoft" &&
	parseInt(navigator.appVersion) >= 4 ) js_ok = true;
if ( navigator.appName.substring(0.8) == "Netscape" &&
	parseInt(navigator.appVersion) >= 3 ) js_ok = true;
      
function js_button(pic, desc) {
	if (js_ok) {
		this.pic = new Image();
		this.pic.src = pic;
		this.pic_active = new Image();
		this.pic_active.src = pic.substring(0, pic.length - 4) + "-over.gif";
		this.text = desc;
	}
}

function js_moveover(id) {
	if (js_ok) {
		document[id].src = js_but[id].pic_active.src;
		window.status = js_but[id].text;
        }
}

function js_moveaway(id) {
	if (js_ok) {
	document[id].src = js_but[id].pic.src;
		window.status = "";
	}
}