if (document.images) {

//rollovers
		news = new Image();
		news_down = new Image();
		home = new Image();
		home_down = new Image();
		phdr = new Image();
		phdr_down = new Image();
		pubs = new Image();
		pubs_down = new Image();
		polls = new Image();
		polls_down = new Image();
		development = new Image();
		development_down = new Image();
		resource = new Image();
		resource_down = new Image();
		media = new Image();
		media_down = new Image();


		news.src = "/dsp/inside/r-news.gif";
		news_down.src = "/dsp/inside/l-news.gif";
		phdr.src = "/dsp/inside/r-hdr.gif";
		phdr_down.src = "/dsp/inside/l-hdr.gif";
		pubs.src = "/dsp/inside/r-pubs.gif";
		pubs_down.src = "/dsp/inside/l-pubs.gif";
		polls.src = "/dsp/inside/r-polls.gif";
		polls_down.src = "/dsp/inside/l-polls.gif";
		development.src = "/dsp/inside/r-cdt.gif";
		development_down.src = "/dsp/inside/l-cdt.gif";
		resource.src = "/dsp/inside/r-lib.gif";
		resource_down.src = "/dsp/inside/l-lib.gif";
		media.src = "/dsp/inside/r-media.gif";
		media_down.src = "/dsp/inside/l-media.gif";
		home.src = "/dsp/inside/r-home.gif";
		home_down.src = "/dsp/inside/l-home.gif";


}

function buttonOn(imageName) {
	if (document.images) {
		document[imageName].src = eval(imageName+"_down.src")
		}
	}

function buttonOff(imageName) {
	if (document.images) {
		document[imageName].src = eval(imageName+".src")
		}
	}