// Image Preloader

function preloadImages() {
	document.preload = new Array();
	if (document.images) {
	for (var i = 0; i < preloadImages.arguments.length; i++) {
	document.preload[i] = new Image();
	document.preload[i].src = preloadImages.arguments[i];
	}
  }
}


// Image Swap - Usage: imageSwap(originalImage, 'newSourceUrl');

function imageSwap(daImage, daSrc){
  var objStr,obj;

  if(document.images){
    if (typeof(daImage) == 'string') {
      objStr = 'document.' + daImage;
      obj = eval(objStr);
      obj.src = daSrc;
    } else if ((typeof(daImage) == 'object') && daImage && daImage.src) {
      daImage.src = daSrc;
    }
  }
}