function swapOn(theImage){
	var activeImage = "images/homeNav-" + theImage + "ON.gif";
	document.getElementById(theImage).src = activeImage;
	}

function swapOff(theImage){
	var activeImage = "images/homeNav-" + theImage + ".gif";
	document.getElementById(theImage).src = activeImage;
	}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		homeNav_port_ON = newImage("images/homeNav-portON.gif");
		homeNav_prints_ON = newImage("images/homeNav-printsON.gif");
		homeNav_about_ON = newImage("images/homeNav-aboutON.gif");
		homeNav_contact_ON = newImage("images/homeNav-contactON.gif");
		homeNav_events_ON = newImage("images/homeNav-eventsON.gif");
		homeNav_links_ON = newImage("images/homeNav-linksON.gif");
				
		preloadFlag = true;
	}
}

function showPopover(whatImage,howwide,howtall) {

    var imageToShowInPopover = whatImage + ".jpg";

	document.getElementById("popover").style.height = howtall;
	document.getElementById("popover").style.width = howwide;
    document.getElementById("popover").style.display = "block";
    document.getElementById("cover").style.display = "block";
    document.getElementById("largeImage").src = "images/port/" +
imageToShowInPopover;

    }

function hidePopover() {
	document.getElementById("popover").style.height = "1px";
	document.getElementById("popover").style.width = "1px";
    document.getElementById("popover").style.display = "none";
    document.getElementById("cover").style.display = "none";
document.getElementById("largeImage").src = "images/loading.gif";


    }

function showPopover2(whatImage,howwide,howtall) {

    var imageToShowInPopover = whatImage + ".jpg";

	document.getElementById("popover").style.height = howtall;
	document.getElementById("popover").style.width = howwide;
    document.getElementById("popover").style.display = "block";
    document.getElementById("cover").style.display = "block";
    document.getElementById("largeImage").src = "images/prints/" +
imageToShowInPopover;

    }