function GetHoverImageBasePath()
{
	documentUrl = document.URL;
	documentUrlParts = documentUrl.split("/");
	
	documentFilename = documentUrlParts[documentUrlParts.length-1];
	documentFilenameParts = documentFilename.split(".");
	
	return "/images/neu/" + documentFilenameParts[0];
}

function getHoverImagePath(image)
{
	imagePath = "";
	
	imageBasePath = GetHoverImageBasePath();
	
	switch (image)
	{
		case 1:
			imagePath = imageBasePath + "1_gr.jpg";
			break;
		case 2:
			imagePath = imageBasePath + "2_gr.jpg";
			break;
		case 3:
			imagePath = imageBasePath + "3_gr.jpg";
			break;
		case 4:
			imagePath = imageBasePath + "4_gr.jpg";
			break;
		default:
			imagePath = imageBasePath + "_rechts.jpg";
			break;
	}
	
	return imagePath;
}

function setHoverImage(image)
{
	
	document.getElementsByName("hoverimage")[0].src = getHoverImagePath(image);
}

function unsetHoverImage()
{
	setHoverImage(0);
}

function preloadHoverImage(path)
{
	tmp = new Image();
	tmp.src = path;
}

var isHoverImagesPreloaded = false;

function preloadHoverImages()
{
	if (isHoverImagesPreloaded)
	{
		return;
	}
	
	preloadHoverImage(getHoverImagePath(0));
	preloadHoverImage(getHoverImagePath(1));
	preloadHoverImage(getHoverImagePath(2));
	preloadHoverImage(getHoverImagePath(3));
	preloadHoverImage(getHoverImagePath(4));
	
	isHoverImagesPreloaded = true;
}