//Preloading Main Nav Images 
if (document.images){
	var navOn = new Array(8);
	var navOf = new Array(8);
	var navCk = new Array(8);
	for (i = 0; i < 8; i++){
		navOf[i] = new Image(); navOf[i].src = 'images/navof' + i + '.gif';
		navOn[i] = new Image(); navOn[i].src = 'images/navon' + i + '.gif';
		navCk[i] = new Image(); navCk[i].src = 'images/navck' + i + '.gif';
		}
}

//-- Rollover Function for Main Nav --
function rollNavOn(imgNum){
	if (document.images){
		document.images["nav"+imgNum].src = navOn[imgNum].src;
	}
}

function rollNavOf(imgNum){
	if (document.images){
		document.images["nav"+imgNum].src = navOf[imgNum].src;
	}
}

function rollNavCk(imgNum){
	if (document.images){
		document.images["nav"+imgNum].src = navCk[imgNum].src;
	}
}