function on (noise) {
document.images[noise].src = onImgArray[noise].src;
}

function off (noise) {
document.images[noise].src = offImgArray[noise].src;
}

function openWin (theURL, w, h, winName) {    
	if (navigator.appName == 'Netscape' && parseInt(navigator.appVersion) < 4) {        
	w = parseInt(w) + 20;        
	h = parseInt(h) + 20;    
	}    
str = "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width="+w+",height="+h;
nWin = window.open(theURL,winName,str);    

	if ( navigator.appName == 'Netscape' ) { 
	nWin.focus();    
	}
}