// Rollover functions...

function imgOn(imgName) {
	if (document.images) {document[imgName].src = eval(imgName + "on.src");}
	}
	
function imgOff(imgName) {
	if (document.images) {document[imgName].src = eval(imgName + "off.src");}
    }

// Preload all nav images...

if (document.images) {            
// Standard images...
img1off = new Image(); img1off.src = "graphics/navbar_1.png";
img2off = new Image(); img2off.src = "graphics/navbar_2.png";
img3off = new Image(); img3off.src = "graphics/navbar_3.png";
img4off = new Image(); img4off.src = "graphics/navbar_4.png";
img5off = new Image(); img5off.src = "graphics/navbar_5.png";
img6off = new Image(); img6off.src = "graphics/navbar_6.png";

// Highlighted images...
img1on = new Image(); img1on.src = "graphics/navbar_1h.png";
img2on = new Image(); img2on.src = "graphics/navbar_2h.png";
img3on = new Image(); img3on.src = "graphics/navbar_3h.png";
img4on = new Image(); img4on.src = "graphics/navbar_4h.png";
img5on = new Image(); img5on.src = "graphics/navbar_5h.png";
img6on = new Image(); img6on.src = "graphics/navbar_6h.png";
}