// PreLoads Images and Image Defaults such as directory name

function preLoadImageNames(){
  for (var i=0; i < arrNames.length; i++){
    //load starting image name 
	arrImgNames[i*2] = imgDir + arrNames[i] + "-off.gif";
    //load mouse over image name
	arrImgNames[i*2+1] = imgDir + arrNames[i] + "-on.gif";
	}
  }
  
function preLoadImages(){
  imgLogo.src = imgDir + "logo.jpg";

  for (var i=0; i < arrNames.length; i++){
    arrImg[i*2] = new Image();
    arrImg[i*2].src = arrImgNames[i*2];
    arrImg[i*2+1] = new Image();
    arrImg[i*2+1].src = arrImgNames[i*2+1];
	}
	
}