function setFocus( what, where ) {
	if(where==null)
		where=what;
	if(document.getElementById)
	   document.getElementById(where).src = what+"-pressed.gif";
	else if(navigator.appVersion.substring(0,1)!='2') // no images in Netscape 2, IE 3
		if(where.substring(0,3) == 'nav' && document.layers)
			document.navTool.document[where].src = what+'-pressed.gif';
		else
			document [where].src = what+'-pressed.gif';
	where = null;
}

function clearFocus( what, where ) {
	if(where==null)
		where=what;
	if(document.getElementById)
	   document.getElementById(where).src = what+".gif";
	else if(navigator.appVersion.substring(0,1)!='2') // no images in Netscape 2, IE 3
		if(where.substring(0,3) == 'nav' && document.layers)
			document.navTool.document[where].src = what+'.gif';
		else
			document [where].src = what+'.gif';
	where = null;
}