var loaded = false;
var beenFocusedYet = false;

// preload rollover images

if (document.images) {
	
	var home_on = new Image;
	home_on.src = "http://www.louisrosenfeld.com/images/home_on.gif";
	var home_off = new Image;
	home_off.src = "http://www.louisrosenfeld.com/images/home_off.gif";
	
	var consulting_on = new Image;
	consulting_on.src = "http://www.louisrosenfeld.com/images/consulting_on.gif";
	var consulting_off = new Image;
	consulting_off.src = "http://www.louisrosenfeld.com/images/consulting_off.gif";
	
	var presentations_on = new Image;
	presentations_on.src = "http://www.louisrosenfeld.com/images/presentations_on.gif";
	var presentations_off = new Image;
	presentations_off.src = "http://www.louisrosenfeld.com/images/presentations_off.gif";
	
	var publications_on = new Image;
	publications_on.src = "http://www.louisrosenfeld.com/images/publications_on.gif";
	var publications_off = new Image;
	publications_off.src = "http://www.louisrosenfeld.com/images/publications_off.gif";
	
	var in_the_media_on = new Image;
	in_the_media_on.src = "http://www.louisrosenfeld.com/images/in_the_media_on.gif";
	var in_the_media_off = new Image;
	in_the_media_off.src = "http://www.louisrosenfeld.com/images/in_the_media_off.gif";
	
	var biography_on = new Image;
	biography_on.src = "http://www.louisrosenfeld.com/images/biography_on.gif";
	var biography_off = new Image;
	biography_off.src = "http://www.louisrosenfeld.com/images/biography_off.gif";
	
	}

function imgOn(imgName) {
    if (loaded && document.images) {
        document[imgName].src = eval(imgName + "_on.src");
        }
    }

function imgOff(imgName) {
    if (loaded && document.images) {
        document[imgName].src = eval(imgName + "_off.src");
        }
    }

function pluralForm(n) {
    if (n == 1) {
        return "";
        }
    else {
        return "s";
        }
    }

function handleFocus() {
	if (!beenFocusedYet) {
		this.value = "";
		beenFocusedYet = true;
		}	
	}

function doNothing() {
	return true;
	}