var tempname = '';

function Img(name) {
	if (name) {
		if (name != tempname) {
			document[name].src='images/arrow.gif';
			if (tempname != '') { document[tempname].src='images/spacer.gif'; }
		}
		tempname = name;
	}
	else {
		document[tempname].src='images/spacer.gif'; 
		tempname = '';
	}
}

function LogoBkg() {
	bkgnum = Math.floor(Math.random() * 5) + 1;
	document.logo_bkg.src = 'images/logo_bkg_'+ bkgnum +'.jpg';
}