var arrayOfImages;

function SwapImage(imageUrl, imageAltText, targetImage)
{
	var oImage = document.getElementById(targetImage);
	oImage.src = imageUrl.src;
	oImage.setAttribute("alt", imageAltText);
	oImage.setAttribute("title", imageAltText);
}

function PreloadImage(imageUrl) {
	var d = document;
	
	if (d.images) {
		if (!d.arrayOfImages) {
			d.arrayOfImages = new Array();			
		}
		
		var pos = d.arrayOfImages.length;
		d.arrayOfImages[pos] = new Image;
		d.arrayOfImages[pos].src = imageUrl;
	}
}